feat: multi-provider AI assistant, repo URL simplification

- lib/ai.ts: unified AI client supporting Anthropic (native format) and
  OpenAI-compatible providers (OpenAI, Perplexity, Ollama, OpenRouter, custom)
- settings: 6-provider chip selector, base URL auto-filled on preset select,
  Anthropic URL hidden (fixed), model/key placeholders per provider
- settings: git repo config replaced by single Repo URL field (.git paste)
  auto-parsed to instance URL + owner + repo at save time
- new.tsx: Suggest button between Symptom and Root Cause, visible when AI
  enabled and title+symptom filled; pre-fills rootCause and fix inline

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/incident/[id].tsx

@@ -10,7 +10,7 @@ import {
 import { useLocalSearchParams, router, useNavigation } from "expo-router";
 import * as Clipboard from "expo-clipboard";
 import * as SecureStore from "expo-secure-store";
-import { getIncidentById, updateIncident } from "@/lib/db";
+import { getIncidentById, updateIncident, deleteIncident } from "@/lib/db";
 import { renderMarkdown } from "@/lib/markdown";
 import { pushIncidentToGit } from "@/lib/git";
 import type { GitProvider } from "@/lib/git";
@@ -54,6 +54,25 @@ export default function IncidentDetailScreen() {
     }
   }, [id]);
 
+  async function handleDelete() {
+    if (!incident) return;
+    Alert.alert(
+      "Delete incident?",
+      "This action cannot be undone.",
+      [
+        { text: "Cancel", style: "cancel" },
+        {
+          text: "Delete",
+          style: "destructive",
+          onPress: async () => {
+            await deleteIncident(incident.id);
+            router.replace("/");
+          },
+        },
+      ]
+    );
+  }
+
   async function handleResolve() {
     if (!incident) return;
     await updateIncident(incident.id, { status: "resolved" });
@@ -102,7 +121,8 @@ export default function IncidentDetailScreen() {
       repo = gitlabRepo;
     }
 
-    if (!token || !owner || !repo) {
+    const needsUrl = p === "gitea" || p === "gitlab";
+    if (!token || !owner || !repo || (needsUrl && !url)) {
       Alert.alert("Git not configured", `Set up ${p.charAt(0).toUpperCase() + p.slice(1)} in Settings first.`);
       return;
     }
@@ -291,6 +311,23 @@ export default function IncidentDetailScreen() {
             Edit
           </Text>
         </Pressable>
+
+        <Pressable
+          onPress={handleDelete}
+          style={{
+            backgroundColor: "#ef444410",
+            borderWidth: 1,
+            borderColor: "#ef4444",
+            borderRadius: 10,
+            padding: 14,
+            alignItems: "center",
+            marginTop: 8,
+          }}
+        >
+          <Text style={{ color: "#ef4444", fontWeight: "600", fontSize: 15 }}>
+            Delete Incident
+          </Text>
+        </Pressable>
       </View>
     </ScrollView>
   );

app/new.tsx

@@ -10,6 +10,7 @@ import {
   Alert,
 } from "react-native";
 import { router, useLocalSearchParams, useNavigation } from "expo-router";
+import * as SecureStore from "expo-secure-store";
 import {
   createIncident,
   updateIncident,
@@ -18,6 +19,7 @@ import {
 } from "@/lib/db";
 import { Colors } from "@/constants/theme";
 import { useVoice } from "@/hooks/useVoice";
+import { callAI } from "@/lib/ai";
 import type { IncidentDraft } from "@/types/incident";
 
 const FIELD_STYLE = {
@@ -48,6 +50,14 @@ const LABEL_STYLE = {
 
 type VoiceField = "title" | "service" | "symptom" | "rootCause" | "fix";
 
+function incrementTemplate(template: string): string {
+  const match = template.match(/^([\s\S]*?)(\d+)$/);
+  if (!match) return template;
+  const [, prefix, numStr] = match;
+  const next = (parseInt(numStr, 10) + 1).toString().padStart(numStr.length, "0");
+  return prefix + next;
+}
+
 export default function NewIncidentScreen() {
   const { editId } = useLocalSearchParams<{ editId?: string }>();
   const navigation = useNavigation();
@@ -63,6 +73,9 @@ export default function NewIncidentScreen() {
   });
   const [tagInput, setTagInput] = useState("");
   const [saving, setSaving] = useState(false);
+  const [suggesting, setSuggesting] = useState(false);
+  const [suggestError, setSuggestError] = useState("");
+  const [aiEnabled, setAiEnabled] = useState(false);
   const [knownServices, setKnownServices] = useState<string[]>([]);
   const [serviceFocused, setServiceFocused] = useState(false);
 
@@ -72,8 +85,16 @@ export default function NewIncidentScreen() {
 
   useEffect(() => {
     getDistinctServices().then(setKnownServices);
+    SecureStore.getItemAsync("pref_ai_enabled").then((v) => setAiEnabled(v === "true"));
   }, []);
 
+  useEffect(() => {
+    if (editId) return;
+    SecureStore.getItemAsync("pref_title_template").then((tpl) => {
+      if (tpl) setForm((f) => ({ ...f, title: tpl }));
+    });
+  }, [editId]);
+
   useEffect(() => {
     if (!editId) return;
     navigation.setOptions({ title: "Edit Incident" });
@@ -133,6 +154,19 @@ export default function NewIncidentScreen() {
     setForm((f) => ({ ...f, tags: f.tags.filter((t) => t !== tag) }));
   }
 
+  async function handleSuggest() {
+    setSuggesting(true);
+    setSuggestError("");
+    try {
+      const result = await callAI(form.title, form.symptom);
+      setForm((f) => ({ ...f, rootCause: result.rootCause, fix: result.fix }));
+    } catch (e) {
+      setSuggestError(e instanceof Error ? e.message : "AI call failed");
+    } finally {
+      setSuggesting(false);
+    }
+  }
+
   async function handleSave() {
     if (!form.title.trim()) {
       Alert.alert("Required", "Title is required.");
@@ -144,6 +178,10 @@ export default function NewIncidentScreen() {
         await updateIncident(editId, form);
       } else {
         await createIncident(form);
+        const tpl = await SecureStore.getItemAsync("pref_title_template");
+        if (tpl) {
+          await SecureStore.setItemAsync("pref_title_template", incrementTemplate(tpl));
+        }
       }
       router.back();
     } catch {
@@ -278,6 +316,35 @@ export default function NewIncidentScreen() {
           returnKeyType="next"
         />
 
+        {aiEnabled && form.title.trim() && form.symptom.trim() && (
+          <View style={{ marginBottom: 16 }}>
+            <Pressable
+              onPress={handleSuggest}
+              disabled={suggesting}
+              style={{
+                backgroundColor: suggesting ? Colors.surface2 : Colors.surface,
+                borderRadius: 8,
+                padding: 12,
+                alignItems: "center",
+                borderWidth: 1,
+                borderColor: Colors.primary,
+                flexDirection: "row",
+                justifyContent: "center",
+                gap: 8,
+              }}
+            >
+              <Text style={{ color: Colors.primary, fontSize: 14, fontWeight: "700" }}>
+                {suggesting ? "Analyzing…" : "✦ Suggest root cause & fix"}
+              </Text>
+            </Pressable>
+            {suggestError !== "" && (
+              <Text style={{ color: Colors.danger, fontSize: 12, marginTop: 6 }}>
+                {suggestError}
+              </Text>
+            )}
+          </View>
+        )}
+
         {labelRow("Root Cause", "rootCause")}
         <TextInput
           style={MONO_FIELD_STYLE}

app/settings.tsx

@@ -11,24 +11,27 @@ import * as SecureStore from "expo-secure-store";
 import { Colors } from "@/constants/theme";
 import { DEFAULT_TEMPLATE } from "@/lib/markdown";
 import type { GitProvider } from "@/lib/git";
+import type { AIProvider } from "@/lib/ai";
+import { AI_PROVIDER_BASE_URLS, AI_PROVIDER_MODEL_PLACEHOLDERS } from "@/lib/ai";
 
 const KEYS = {
   INPUT_MODE: "pref_input_mode",
   HOME_VIEW: "pref_home_view",
   AI_ENABLED: "pref_ai_enabled",
+  AI_PROVIDER: "pref_ai_provider",
   AI_KEY: "pref_ai_key",
+  AI_BASE_URL: "pref_ai_base_url",
+  AI_MODEL: "pref_ai_model",
+  TITLE_TEMPLATE: "pref_title_template",
   MD_TEMPLATE: "md_template",
   GIT_PROVIDER: "git_provider",
-  // Gitea
   GITEA_URL: "gitea_url",
   GITEA_TOKEN: "gitea_token",
   GITEA_OWNER: "gitea_owner",
   GITEA_REPO: "gitea_repo",
-  // GitHub
   GITHUB_TOKEN: "github_token",
   GITHUB_OWNER: "github_owner",
   GITHUB_REPO: "github_repo",
-  // GitLab
   GITLAB_URL: "gitlab_url",
   GITLAB_TOKEN: "gitlab_token",
   GITLAB_OWNER: "gitlab_owner",
@@ -70,208 +73,245 @@ const PROVIDER_LABELS: Record<GitProvider, string> = {
   gitlab: "GitLab",
 };
 
+function parseRepoUrl(raw: string, provider: GitProvider): { instanceUrl?: string; owner?: string; repo?: string } {
+  try {
+    const cleaned = raw.trim().replace(/\.git$/, "");
+    const u = new URL(cleaned);
+    const parts = u.pathname.split("/").filter(Boolean);
+    if (parts.length < 2) return {};
+    const repo = parts[parts.length - 1];
+    const owner = parts[parts.length - 2];
+    const instanceUrl = provider !== "github" ? `${u.protocol}//${u.host}` : undefined;
+    return { instanceUrl, owner, repo };
+  } catch {
+    return {};
+  }
+}
+
+function buildRepoUrl(instanceUrl: string | null, owner: string | null, repo: string | null, provider: GitProvider): string {
+  if (!owner || !repo) return "";
+  const base = provider === "github" ? "https://github.com" : (instanceUrl ?? "");
+  if (!base) return "";
+  return `${base}/${owner}/${repo}.git`;
+}
+
+// Defined outside SettingsScreen — prevents remount on every rerender, which
+// would cause TextInput to lose focus after each keystroke.
+
+function ToggleRow({
+  label,
+  value,
+  onValueChange,
+}: {
+  label: string;
+  value: boolean;
+  onValueChange: (v: boolean) => void;
+}) {
+  return (
+    <View
+      style={{
+        flexDirection: "row",
+        justifyContent: "space-between",
+        alignItems: "center",
+        backgroundColor: Colors.surface,
+        borderRadius: 8,
+        padding: 14,
+        marginBottom: 10,
+      }}
+    >
+      <Text style={{ color: Colors.text1, fontSize: 15 }}>{label}</Text>
+      <Switch
+        value={value}
+        onValueChange={onValueChange}
+        trackColor={{ true: Colors.primary, false: Colors.border }}
+        thumbColor="#fff"
+      />
+    </View>
+  );
+}
+
+function SegmentRow({
+  label,
+  options,
+  value,
+  onChange,
+  wrap,
+}: {
+  label: string;
+  options: { key: string; label: string }[];
+  value: string;
+  onChange: (v: string) => void;
+  wrap?: boolean;
+}) {
+  return (
+    <View style={{ marginBottom: 16 }}>
+      <Text style={LABEL}>{label}</Text>
+      <View style={{ flexDirection: "row", gap: 8, flexWrap: wrap ? "wrap" : "nowrap" }}>
+        {options.map((opt) => (
+          <Pressable
+            key={opt.key}
+            onPress={() => onChange(opt.key)}
+            style={{
+              ...(wrap ? { width: "31%" } : { flex: 1 }),
+              backgroundColor:
+                value === opt.key ? Colors.primary : Colors.surface,
+              borderRadius: 8,
+              padding: 12,
+              alignItems: "center",
+              borderWidth: 1,
+              borderColor:
+                value === opt.key ? Colors.primary : Colors.border,
+            }}
+          >
+            <Text
+              style={{
+                color: value === opt.key ? Colors.bg : Colors.text2,
+                fontWeight: "700",
+                fontSize: 13,
+              }}
+            >
+              {opt.label}
+            </Text>
+          </Pressable>
+        ))}
+      </View>
+    </View>
+  );
+}
+
+function Field({
+  label,
+  value,
+  onChange,
+  placeholder,
+  secure,
+  url,
+}: {
+  label: string;
+  value: string;
+  onChange: (v: string) => void;
+  placeholder?: string;
+  secure?: boolean;
+  url?: boolean;
+}) {
+  return (
+    <>
+      <Text style={LABEL}>{label}</Text>
+      <TextInput
+        style={INPUT}
+        value={value}
+        onChangeText={onChange}
+        placeholder={placeholder}
+        placeholderTextColor={Colors.textDim}
+        secureTextEntry={secure}
+        autoCapitalize="none"
+        autoCorrect={false}
+        keyboardType={url ? "url" : "default"}
+      />
+    </>
+  );
+}
+
 export default function SettingsScreen() {
   const [inputMode, setInputMode] = useState<"voice" | "form">("form");
   const [homeView, setHomeView] = useState<"dashboard" | "capture">("dashboard");
   const [aiEnabled, setAiEnabled] = useState(false);
+  const [aiProvider, setAiProvider] = useState<AIProvider>("openai");
   const [aiKey, setAiKey] = useState("");
+  const [aiBaseUrl, setAiBaseUrl] = useState("");
+  const [aiModel, setAiModel] = useState("");
+  const [titleTemplate, setTitleTemplate] = useState("");
   const [mdTemplate, setMdTemplate] = useState(DEFAULT_TEMPLATE);
   const [saved, setSaved] = useState(false);
 
-  // Git provider
   const [gitProvider, setGitProvider] = useState<GitProvider>("gitea");
-  // Gitea
-  const [giteaUrl, setGiteaUrl] = useState("");
+  const [giteaRepoUrl, setGiteaRepoUrl] = useState("");
   const [giteaToken, setGiteaToken] = useState("");
-  const [giteaOwner, setGiteaOwner] = useState("");
-  const [giteaRepo, setGiteaRepo] = useState("");
-  // GitHub
+  const [githubRepoUrl, setGithubRepoUrl] = useState("");
   const [githubToken, setGithubToken] = useState("");
-  const [githubOwner, setGithubOwner] = useState("");
-  const [githubRepo, setGithubRepo] = useState("");
-  // GitLab
-  const [gitlabUrl, setGitlabUrl] = useState("");
+  const [gitlabRepoUrl, setGitlabRepoUrl] = useState("");
   const [gitlabToken, setGitlabToken] = useState("");
-  const [gitlabOwner, setGitlabOwner] = useState("");
-  const [gitlabRepo, setGitlabRepo] = useState("");
 
   useEffect(() => {
     (async () => {
-      const [im, hv, ai, key, tpl, gp, gu, gt, go, gr, ghu, ghown, ghrepo, glu, glt, glo, glr] =
-        await Promise.all([
-          SecureStore.getItemAsync(KEYS.INPUT_MODE),
-          SecureStore.getItemAsync(KEYS.HOME_VIEW),
-          SecureStore.getItemAsync(KEYS.AI_ENABLED),
-          SecureStore.getItemAsync(KEYS.AI_KEY),
-          SecureStore.getItemAsync(KEYS.MD_TEMPLATE),
-          SecureStore.getItemAsync(KEYS.GIT_PROVIDER),
-          SecureStore.getItemAsync(KEYS.GITEA_URL),
-          SecureStore.getItemAsync(KEYS.GITEA_TOKEN),
-          SecureStore.getItemAsync(KEYS.GITEA_OWNER),
-          SecureStore.getItemAsync(KEYS.GITEA_REPO),
-          SecureStore.getItemAsync(KEYS.GITHUB_TOKEN),
-          SecureStore.getItemAsync(KEYS.GITHUB_OWNER),
-          SecureStore.getItemAsync(KEYS.GITHUB_REPO),
-          SecureStore.getItemAsync(KEYS.GITLAB_URL),
-          SecureStore.getItemAsync(KEYS.GITLAB_TOKEN),
-          SecureStore.getItemAsync(KEYS.GITLAB_OWNER),
-          SecureStore.getItemAsync(KEYS.GITLAB_REPO),
-        ]);
+      const [
+        im, hv, ai, aip, key, aiUrl, aiMdl, titleTpl, tpl,
+        gp, gu, gt, go, gr,
+        ghu, ghown, ghrepo,
+        glu, glt, glo, glr,
+      ] = await Promise.all([
+        SecureStore.getItemAsync(KEYS.INPUT_MODE),
+        SecureStore.getItemAsync(KEYS.HOME_VIEW),
+        SecureStore.getItemAsync(KEYS.AI_ENABLED),
+        SecureStore.getItemAsync(KEYS.AI_PROVIDER),
+        SecureStore.getItemAsync(KEYS.AI_KEY),
+        SecureStore.getItemAsync(KEYS.AI_BASE_URL),
+        SecureStore.getItemAsync(KEYS.AI_MODEL),
+        SecureStore.getItemAsync(KEYS.TITLE_TEMPLATE),
+        SecureStore.getItemAsync(KEYS.MD_TEMPLATE),
+        SecureStore.getItemAsync(KEYS.GIT_PROVIDER),
+        SecureStore.getItemAsync(KEYS.GITEA_URL),
+        SecureStore.getItemAsync(KEYS.GITEA_TOKEN),
+        SecureStore.getItemAsync(KEYS.GITEA_OWNER),
+        SecureStore.getItemAsync(KEYS.GITEA_REPO),
+        SecureStore.getItemAsync(KEYS.GITHUB_TOKEN),
+        SecureStore.getItemAsync(KEYS.GITHUB_OWNER),
+        SecureStore.getItemAsync(KEYS.GITHUB_REPO),
+        SecureStore.getItemAsync(KEYS.GITLAB_URL),
+        SecureStore.getItemAsync(KEYS.GITLAB_TOKEN),
+        SecureStore.getItemAsync(KEYS.GITLAB_OWNER),
+        SecureStore.getItemAsync(KEYS.GITLAB_REPO),
+      ]);
       if (im) setInputMode(im as "voice" | "form");
       if (hv) setHomeView(hv as "dashboard" | "capture");
       if (ai) setAiEnabled(ai === "true");
+      if (aip) setAiProvider(aip as AIProvider);
       if (key) setAiKey(key);
+      if (aiUrl) setAiBaseUrl(aiUrl);
+      if (aiMdl) setAiModel(aiMdl);
+      if (titleTpl) setTitleTemplate(titleTpl);
       if (tpl) setMdTemplate(tpl);
       if (gp) setGitProvider(gp as GitProvider);
-      if (gu) setGiteaUrl(gu);
       if (gt) setGiteaToken(gt);
-      if (go) setGiteaOwner(go);
-      if (gr) setGiteaRepo(gr);
+      setGiteaRepoUrl(buildRepoUrl(gu, go, gr, "gitea"));
       if (ghu) setGithubToken(ghu);
-      if (ghown) setGithubOwner(ghown);
-      if (ghrepo) setGithubRepo(ghrepo);
-      if (glu) setGitlabUrl(glu);
+      setGithubRepoUrl(buildRepoUrl(null, ghown, ghrepo, "github"));
       if (glt) setGitlabToken(glt);
-      if (glo) setGitlabOwner(glo);
-      if (glr) setGitlabRepo(glr);
+      setGitlabRepoUrl(buildRepoUrl(glu, glo, glr, "gitlab"));
     })();
   }, []);
 
   async function handleSave() {
+    const gitea = parseRepoUrl(giteaRepoUrl, "gitea");
+    const github = parseRepoUrl(githubRepoUrl, "github");
+    const gitlab = parseRepoUrl(gitlabRepoUrl, "gitlab");
     await Promise.all([
       SecureStore.setItemAsync(KEYS.INPUT_MODE, inputMode),
       SecureStore.setItemAsync(KEYS.HOME_VIEW, homeView),
       SecureStore.setItemAsync(KEYS.AI_ENABLED, String(aiEnabled)),
+      SecureStore.setItemAsync(KEYS.AI_PROVIDER, aiProvider),
       SecureStore.setItemAsync(KEYS.AI_KEY, aiKey),
+      SecureStore.setItemAsync(KEYS.AI_BASE_URL, aiBaseUrl),
+      SecureStore.setItemAsync(KEYS.AI_MODEL, aiModel),
+      SecureStore.setItemAsync(KEYS.TITLE_TEMPLATE, titleTemplate),
       SecureStore.setItemAsync(KEYS.MD_TEMPLATE, mdTemplate),
       SecureStore.setItemAsync(KEYS.GIT_PROVIDER, gitProvider),
-      SecureStore.setItemAsync(KEYS.GITEA_URL, giteaUrl),
+      SecureStore.setItemAsync(KEYS.GITEA_URL, gitea.instanceUrl ?? ""),
       SecureStore.setItemAsync(KEYS.GITEA_TOKEN, giteaToken),
-      SecureStore.setItemAsync(KEYS.GITEA_OWNER, giteaOwner),
-      SecureStore.setItemAsync(KEYS.GITEA_REPO, giteaRepo),
+      SecureStore.setItemAsync(KEYS.GITEA_OWNER, gitea.owner ?? ""),
+      SecureStore.setItemAsync(KEYS.GITEA_REPO, gitea.repo ?? ""),
       SecureStore.setItemAsync(KEYS.GITHUB_TOKEN, githubToken),
-      SecureStore.setItemAsync(KEYS.GITHUB_OWNER, githubOwner),
-      SecureStore.setItemAsync(KEYS.GITHUB_REPO, githubRepo),
-      SecureStore.setItemAsync(KEYS.GITLAB_URL, gitlabUrl),
+      SecureStore.setItemAsync(KEYS.GITHUB_OWNER, github.owner ?? ""),
+      SecureStore.setItemAsync(KEYS.GITHUB_REPO, github.repo ?? ""),
+      SecureStore.setItemAsync(KEYS.GITLAB_URL, gitlab.instanceUrl ?? ""),
       SecureStore.setItemAsync(KEYS.GITLAB_TOKEN, gitlabToken),
-      SecureStore.setItemAsync(KEYS.GITLAB_OWNER, gitlabOwner),
-      SecureStore.setItemAsync(KEYS.GITLAB_REPO, gitlabRepo),
+      SecureStore.setItemAsync(KEYS.GITLAB_OWNER, gitlab.owner ?? ""),
+      SecureStore.setItemAsync(KEYS.GITLAB_REPO, gitlab.repo ?? ""),
     ]);
     setSaved(true);
     setTimeout(() => setSaved(false), 2000);
   }
 
-  function ToggleRow({
-    label,
-    value,
-    onValueChange,
-  }: {
-    label: string;
-    value: boolean;
-    onValueChange: (v: boolean) => void;
-  }) {
-    return (
-      <View
-        style={{
-          flexDirection: "row",
-          justifyContent: "space-between",
-          alignItems: "center",
-          backgroundColor: Colors.surface,
-          borderRadius: 8,
-          padding: 14,
-          marginBottom: 10,
-        }}
-      >
-        <Text style={{ color: Colors.text1, fontSize: 15 }}>{label}</Text>
-        <Switch
-          value={value}
-          onValueChange={onValueChange}
-          trackColor={{ true: Colors.primary, false: Colors.border }}
-          thumbColor="#fff"
-        />
-      </View>
-    );
-  }
-
-  function SegmentRow({
-    label,
-    options,
-    value,
-    onChange,
-  }: {
-    label: string;
-    options: { key: string; label: string }[];
-    value: string;
-    onChange: (v: string) => void;
-  }) {
-    return (
-      <View style={{ marginBottom: 16 }}>
-        <Text style={LABEL}>{label}</Text>
-        <View style={{ flexDirection: "row", gap: 8 }}>
-          {options.map((opt) => (
-            <Pressable
-              key={opt.key}
-              onPress={() => onChange(opt.key)}
-              style={{
-                flex: 1,
-                backgroundColor:
-                  value === opt.key ? Colors.primary : Colors.surface,
-                borderRadius: 8,
-                padding: 12,
-                alignItems: "center",
-                borderWidth: 1,
-                borderColor:
-                  value === opt.key ? Colors.primary : Colors.border,
-              }}
-            >
-              <Text
-                style={{
-                  color: value === opt.key ? Colors.bg : Colors.text2,
-                  fontWeight: "700",
-                  fontSize: 13,
-                }}
-              >
-                {opt.label}
-              </Text>
-            </Pressable>
-          ))}
-        </View>
-      </View>
-    );
-  }
-
-  function Field({
-    label,
-    value,
-    onChange,
-    placeholder,
-    secure,
-    url,
-  }: {
-    label: string;
-    value: string;
-    onChange: (v: string) => void;
-    placeholder?: string;
-    secure?: boolean;
-    url?: boolean;
-  }) {
-    return (
-      <>
-        <Text style={LABEL}>{label}</Text>
-        <TextInput
-          style={INPUT}
-          value={value}
-          onChangeText={onChange}
-          placeholder={placeholder}
-          placeholderTextColor={Colors.textDim}
-          secureTextEntry={secure}
-          autoCapitalize="none"
-          keyboardType={url ? "url" : "default"}
-        />
-      </>
-    );
-  }
-
   return (
     <ScrollView
       style={{ flex: 1, backgroundColor: Colors.bg }}
@@ -300,20 +340,96 @@ export default function SettingsScreen() {
         ]}
       />
 
-      <Text style={SECTION_TITLE}>AI (optional)</Text>
+      <Field
+        label="Title Template"
+        value={titleTemplate}
+        onChange={setTitleTemplate}
+        placeholder="INC-001  (leave empty to disable)"
+      />
+      <View
+        style={{
+          backgroundColor: Colors.surface,
+          borderRadius: 8,
+          padding: 10,
+          marginTop: -8,
+          marginBottom: 14,
+          borderLeftWidth: 3,
+          borderLeftColor: Colors.text2,
+        }}
+      >
+        <Text style={{ color: Colors.text2, fontSize: 12, lineHeight: 18 }}>
+          Pre-fills the Title field on new incidents. If the value ends with
+          digits, the number is auto-incremented after each save.{"\n"}
+          e.g. INC-001 → INC-002 → INC-003
+        </Text>
+      </View>
+
+      <Text style={SECTION_TITLE}>AI — Root Cause Assistant</Text>
+      <View
+        style={{
+          backgroundColor: Colors.surface,
+          borderRadius: 8,
+          padding: 12,
+          marginBottom: 14,
+          borderLeftWidth: 3,
+          borderLeftColor: Colors.text2,
+        }}
+      >
+        <Text style={{ color: Colors.text2, fontSize: 13, lineHeight: 20 }}>
+          When enabled, a Suggest button appears between Symptom and Root Cause.
+          It sends the title and symptom to your AI provider and pre-fills the
+          analysis fields. Supports Anthropic natively; all others use the
+          OpenAI-compatible API.
+        </Text>
+      </View>
       <ToggleRow
         label="Enable AI assistance"
         value={aiEnabled}
         onValueChange={setAiEnabled}
       />
       {aiEnabled && (
-        <Field
-          label="API Key"
-          value={aiKey}
-          onChange={setAiKey}
-          placeholder="sk-..."
-          secure
-        />
+        <>
+          <SegmentRow
+            label="Provider"
+            value={aiProvider}
+            wrap
+            onChange={(v) => {
+              const p = v as AIProvider;
+              setAiProvider(p);
+              setAiBaseUrl(AI_PROVIDER_BASE_URLS[p]);
+            }}
+            options={[
+              { key: "anthropic", label: "Anthropic" },
+              { key: "openai", label: "OpenAI" },
+              { key: "perplexity", label: "Perplexity" },
+              { key: "ollama", label: "Ollama" },
+              { key: "openrouter", label: "OpenRouter" },
+              { key: "custom", label: "Custom" },
+            ]}
+          />
+          {aiProvider !== "anthropic" && (
+            <Field
+              label="Base URL"
+              value={aiBaseUrl}
+              onChange={setAiBaseUrl}
+              placeholder={AI_PROVIDER_BASE_URLS[aiProvider] || "https://your-api.example.com/v1"}
+              url
+            />
+          )}
+          <Field
+            label="Model"
+            value={aiModel}
+            onChange={setAiModel}
+            placeholder={AI_PROVIDER_MODEL_PLACEHOLDERS[aiProvider]}
+          />
+          <Field
+            label="API Key"
+            value={aiKey}
+            onChange={setAiKey}
+            placeholder={aiProvider === "ollama" ? "no key required" : "paste your API key"}
+            secure
+          />
+        </>
       )}
 
       <Text style={SECTION_TITLE}>Git Repository</Text>
@@ -331,50 +447,46 @@ export default function SettingsScreen() {
       {gitProvider === "gitea" && (
         <>
           <Field
-            label="Instance URL"
-            value={giteaUrl}
-            onChange={setGiteaUrl}
-            placeholder="https://homegit.example.com"
+            label="Repo URL"
+            value={giteaRepoUrl}
+            onChange={setGiteaRepoUrl}
+            placeholder="https://homegit.example.com/username/incidents.git"
             url
           />
           <Field
-            label="Token"
+            label="Token (PAT, write:repository)"
             value={giteaToken}
             onChange={setGiteaToken}
-            placeholder="Bearer token"
+            placeholder="paste token value — no Bearer prefix"
             secure
           />
-          <Field
-            label="Owner"
-            value={giteaOwner}
-            onChange={setGiteaOwner}
-            placeholder="username or org"
-          />
-          <Field
-            label="Repository"
-            value={giteaRepo}
-            onChange={setGiteaRepo}
-            placeholder="incidents"
-          />
+          <View
+            style={{
+              backgroundColor: Colors.surface,
+              borderRadius: 8,
+              padding: 10,
+              marginTop: -8,
+              marginBottom: 14,
+              borderLeftWidth: 3,
+              borderLeftColor: Colors.text2,
+            }}
+          >
+            <Text style={{ color: Colors.text2, fontSize: 12, lineHeight: 18 }}>
+              The repo must have at least one commit — initialize it with a README if empty.
+            </Text>
+          </View>
         </>
       )}
 
       {gitProvider === "github" && (
         <>
-          <View
-            style={{
-              backgroundColor: Colors.surface,
-              borderRadius: 8,
-              padding: 12,
-              marginBottom: 14,
-              borderLeftWidth: 3,
-              borderLeftColor: Colors.primary,
-            }}
-          >
-            <Text style={{ color: Colors.text2, fontSize: 13 }}>
-              Uses api.github.com — no instance URL required.
-            </Text>
-          </View>
+          <Field
+            label="Repo URL"
+            value={githubRepoUrl}
+            onChange={setGithubRepoUrl}
+            placeholder="https://github.com/username/incidents.git"
+            url
+          />
           <Field
             label="Personal Access Token"
             value={githubToken}
@@ -382,28 +494,16 @@ export default function SettingsScreen() {
             placeholder="ghp_..."
             secure
           />
-          <Field
-            label="Owner (username or org)"
-            value={githubOwner}
-            onChange={setGithubOwner}
-            placeholder="your-username"
-          />
-          <Field
-            label="Repository"
-            value={githubRepo}
-            onChange={setGithubRepo}
-            placeholder="incidents"
-          />
         </>
       )}
 
       {gitProvider === "gitlab" && (
         <>
           <Field
-            label="Instance URL"
-            value={gitlabUrl}
-            onChange={setGitlabUrl}
-            placeholder="https://gitlab.com"
+            label="Repo URL"
+            value={gitlabRepoUrl}
+            onChange={setGitlabRepoUrl}
+            placeholder="https://gitlab.com/username/incidents.git"
             url
           />
           <Field
@@ -413,18 +513,6 @@ export default function SettingsScreen() {
             placeholder="glpat-..."
             secure
           />
-          <Field
-            label="Namespace (user or group)"
-            value={gitlabOwner}
-            onChange={setGitlabOwner}
-            placeholder="your-username"
-          />
-          <Field
-            label="Repository"
-            value={gitlabRepo}
-            onChange={setGitlabRepo}
-            placeholder="incidents"
-          />
         </>
       )}
 

lib/ai.ts

@@ -0,0 +1,128 @@
+import * as SecureStore from "expo-secure-store";
+
+export type AIProvider =
+  | "anthropic"
+  | "openai"
+  | "perplexity"
+  | "ollama"
+  | "openrouter"
+  | "custom";
+
+const KEYS = {
+  AI_PROVIDER: "pref_ai_provider",
+  AI_BASE_URL: "pref_ai_base_url",
+  AI_MODEL: "pref_ai_model",
+  AI_KEY: "pref_ai_key",
+};
+
+export const AI_PROVIDER_BASE_URLS: Record<AIProvider, string> = {
+  anthropic: "https://api.anthropic.com",
+  openai: "https://api.openai.com/v1",
+  perplexity: "https://api.perplexity.ai",
+  ollama: "http://localhost:11434/v1",
+  openrouter: "https://openrouter.ai/api/v1",
+  custom: "",
+};
+
+export const AI_PROVIDER_MODEL_PLACEHOLDERS: Record<AIProvider, string> = {
+  anthropic: "claude-haiku-4-5-20251001",
+  openai: "gpt-4o-mini",
+  perplexity: "llama-3.1-sonar-small-128k-online",
+  ollama: "llama3.2",
+  openrouter: "openai/gpt-4o-mini",
+  custom: "model-name",
+};
+
+const SYSTEM_PROMPT =
+  "You are a systems reliability engineer. Analyze the incident and respond with JSON ONLY " +
+  "(no prose, no markdown fences):\n" +
+  '{"root_cause":"...","fix":"..."}\n' +
+  "Be concise and technical. Max 200 chars per field.";
+
+async function getConfig() {
+  const [provider, baseUrl, model, key] = await Promise.all([
+    SecureStore.getItemAsync(KEYS.AI_PROVIDER),
+    SecureStore.getItemAsync(KEYS.AI_BASE_URL),
+    SecureStore.getItemAsync(KEYS.AI_MODEL),
+    SecureStore.getItemAsync(KEYS.AI_KEY),
+  ]);
+  const p = (provider ?? "openai") as AIProvider;
+  return {
+    provider: p,
+    baseUrl: baseUrl || AI_PROVIDER_BASE_URLS[p],
+    model: model || AI_PROVIDER_MODEL_PLACEHOLDERS[p],
+    key: key ?? "",
+  };
+}
+
+export async function callAI(
+  title: string,
+  symptom: string
+): Promise<{ rootCause: string; fix: string }> {
+  const config = await getConfig();
+  const userMsg = `Title: ${title}\nSymptom: ${symptom}`;
+
+  const raw =
+    config.provider === "anthropic"
+      ? await callAnthropic(config, userMsg)
+      : await callOpenAICompat(config, userMsg);
+
+  try {
+    const parsed = JSON.parse(raw) as { root_cause?: string; fix?: string };
+    return {
+      rootCause: parsed.root_cause ?? "",
+      fix: parsed.fix ?? "",
+    };
+  } catch {
+    throw new Error(`Unexpected AI response: ${raw.slice(0, 120)}`);
+  }
+}
+
+async function callAnthropic(
+  config: { baseUrl: string; model: string; key: string },
+  userMsg: string
+): Promise<string> {
+  const res = await fetch(`${config.baseUrl}/v1/messages`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      "x-api-key": config.key,
+      "anthropic-version": "2023-06-01",
+    },
+    body: JSON.stringify({
+      model: config.model,
+      max_tokens: 512,
+      system: SYSTEM_PROMPT,
+      messages: [{ role: "user", content: userMsg }],
+    }),
+  });
+  if (!res.ok) throw new Error(`Anthropic ${res.status}: ${await res.text()}`);
+  const data = (await res.json()) as { content: { text: string }[] };
+  return data.content[0].text;
+}
+
+async function callOpenAICompat(
+  config: { baseUrl: string; model: string; key: string },
+  userMsg: string
+): Promise<string> {
+  const headers: Record<string, string> = { "Content-Type": "application/json" };
+  if (config.key) headers["Authorization"] = `Bearer ${config.key}`;
+
+  const res = await fetch(`${config.baseUrl}/chat/completions`, {
+    method: "POST",
+    headers,
+    body: JSON.stringify({
+      model: config.model,
+      max_tokens: 512,
+      messages: [
+        { role: "system", content: SYSTEM_PROMPT },
+        { role: "user", content: userMsg },
+      ],
+    }),
+  });
+  if (!res.ok) throw new Error(`AI ${res.status}: ${await res.text()}`);
+  const data = (await res.json()) as {
+    choices: { message: { content: string } }[];
+  };
+  return data.choices[0].message.content;
+}

lib/git.ts

@@ -17,6 +17,16 @@ export interface PushResult {
   error?: string;
 }
 
+const TIMEOUT_MS = 15_000;
+
+function fetchWithTimeout(url: string, init: RequestInit): Promise<Response> {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), TIMEOUT_MS);
+  return fetch(url, { ...init, signal: controller.signal }).finally(() =>
+    clearTimeout(timer)
+  );
+}
+
 export async function pushIncidentToGit(
   incident: Incident,
   config: GitConfig,
@@ -37,43 +47,69 @@ async function pushGitea(
   config: GitConfig,
   markdownTemplate?: string
 ): Promise<PushResult> {
+  if (!config.url) {
+    return { success: false, error: "Gitea instance URL is not set. Check Settings → Git Repository." };
+  }
+  if (!config.token) {
+    return { success: false, error: "Gitea token is not set. Check Settings → Git Repository." };
+  }
+  if (!config.owner || !config.repo) {
+    return { success: false, error: "Gitea owner or repository is not set. Check Settings → Git Repository." };
+  }
+
   const filepath = incidentToFilename(incident);
   const content = renderMarkdown(incident, markdownTemplate);
   const base64Content = btoa(unescape(encodeURIComponent(content)));
-  const apiBase = (config.url ?? "").replace(/\/$/, "");
+  const apiBase = config.url.replace(/\/$/, "");
   const endpoint = `${apiBase}/api/v1/repos/${config.owner}/${config.repo}/contents/${filepath}`;
 
   try {
-    const existing = await fetch(endpoint, {
-      headers: { Authorization: `Bearer ${config.token}` },
+    const existing = await fetchWithTimeout(endpoint, {
+      headers: { Authorization: `token ${config.token}` },
     });
     let sha: string | undefined;
     if (existing.ok) {
       const data = await existing.json() as { sha?: string };
       sha = data.sha;
+    } else if (existing.status === 404 || existing.status === 409) {
+      // 404 = file not found (normal for first push)
+      // 409 = repo is empty / no branch yet — proceed, we'll create with branch:"main"
+    } else {
+      const body = await existing.text();
+      return { success: false, error: `GET ${existing.status}: ${body.slice(0, 200)}` };
     }
 
-    const body: Record<string, string> = {
+    const payload: Record<string, string> = {
       message: `incident: ${incident.title}`,
       content: base64Content,
+      branch: "main",
     };
-    if (sha) body.sha = sha;
+    if (sha) payload.sha = sha;
 
-    const res = await fetch(endpoint, {
-      method: "POST",
+    // POST creates, PUT updates — Gitea requires the correct verb
+    const res = await fetchWithTimeout(endpoint, {
+      method: sha ? "PUT" : "POST",
       headers: {
-        Authorization: `Bearer ${config.token}`,
+        Authorization: `token ${config.token}`,
         "Content-Type": "application/json",
       },
-      body: JSON.stringify(body),
+      body: JSON.stringify(payload),
     });
 
     if (!res.ok) {
-      return { success: false, error: `HTTP ${res.status}: ${await res.text()}` };
+      const body = await res.text();
+      let hint = "";
+      if (res.status === 404) {
+        hint = "\n\nCheck: instance URL (no /api/v1), owner and repo names are exact, token has write:repository scope, and the repo exists on Gitea.";
+      }
+      return { success: false, error: `HTTP ${res.status}: ${body.slice(0, 300)}${hint}` };
     }
     const data = await res.json() as { content?: { html_url?: string } };
     return { success: true, url: data.content?.html_url };
   } catch (e) {
+    if (e instanceof Error && e.name === "AbortError") {
+      return { success: false, error: `Request timed out after ${TIMEOUT_MS / 1000}s. Check that the Gitea URL is reachable.` };
+    }
     return { success: false, error: e instanceof Error ? e.message : String(e) };
   }
 }
@@ -83,13 +119,20 @@ async function pushGitHub(
   config: GitConfig,
   markdownTemplate?: string
 ): Promise<PushResult> {
+  if (!config.token) {
+    return { success: false, error: "GitHub token is not set. Check Settings → Git Repository." };
+  }
+  if (!config.owner || !config.repo) {
+    return { success: false, error: "GitHub owner or repository is not set. Check Settings → Git Repository." };
+  }
+
   const filepath = incidentToFilename(incident);
   const content = renderMarkdown(incident, markdownTemplate);
   const base64Content = btoa(unescape(encodeURIComponent(content)));
   const endpoint = `https://api.github.com/repos/${config.owner}/${config.repo}/contents/${filepath}`;
 
   try {
-    const existing = await fetch(endpoint, {
+    const existing = await fetchWithTimeout(endpoint, {
       headers: {
         Authorization: `Bearer ${config.token}`,
         Accept: "application/vnd.github+json",
@@ -99,30 +142,37 @@ async function pushGitHub(
     if (existing.ok) {
       const data = await existing.json() as { sha?: string };
       sha = data.sha;
+    } else if (existing.status !== 404) {
+      const body = await existing.text();
+      return { success: false, error: `GET ${existing.status}: ${body.slice(0, 200)}` };
     }
 
-    const body: Record<string, string> = {
+    const payload: Record<string, string> = {
       message: `incident: ${incident.title}`,
       content: base64Content,
     };
-    if (sha) body.sha = sha;
+    if (sha) payload.sha = sha;
 
-    const res = await fetch(endpoint, {
+    const res = await fetchWithTimeout(endpoint, {
       method: "PUT",
       headers: {
         Authorization: `Bearer ${config.token}`,
         Accept: "application/vnd.github+json",
         "Content-Type": "application/json",
       },
-      body: JSON.stringify(body),
+      body: JSON.stringify(payload),
     });
 
     if (!res.ok) {
-      return { success: false, error: `HTTP ${res.status}: ${await res.text()}` };
+      const body = await res.text();
+      return { success: false, error: `HTTP ${res.status}: ${body.slice(0, 300)}` };
     }
     const data = await res.json() as { content?: { html_url?: string } };
     return { success: true, url: data.content?.html_url };
   } catch (e) {
+    if (e instanceof Error && e.name === "AbortError") {
+      return { success: false, error: `Request timed out after ${TIMEOUT_MS / 1000}s.` };
+    }
     return { success: false, error: e instanceof Error ? e.message : String(e) };
   }
 }
@@ -132,6 +182,13 @@ async function pushGitLab(
   config: GitConfig,
   markdownTemplate?: string
 ): Promise<PushResult> {
+  if (!config.token) {
+    return { success: false, error: "GitLab token is not set. Check Settings → Git Repository." };
+  }
+  if (!config.owner || !config.repo) {
+    return { success: false, error: "GitLab namespace or repository is not set. Check Settings → Git Repository." };
+  }
+
   const filepath = incidentToFilename(incident);
   const content = renderMarkdown(incident, markdownTemplate);
   const base64Content = btoa(unescape(encodeURIComponent(content)));
@@ -141,12 +198,12 @@ async function pushGitLab(
   const endpoint = `${apiBase}/api/v4/projects/${projectId}/repository/files/${encodedPath}`;
 
   try {
-    const existing = await fetch(`${endpoint}?ref=HEAD`, {
+    const existing = await fetchWithTimeout(`${endpoint}?ref=HEAD`, {
       headers: { "PRIVATE-TOKEN": config.token },
     });
     const method = existing.ok ? "PUT" : "POST";
 
-    const res = await fetch(endpoint, {
+    const res = await fetchWithTimeout(endpoint, {
       method,
       headers: {
         "PRIVATE-TOKEN": config.token,
@@ -161,7 +218,8 @@ async function pushGitLab(
     });
 
     if (!res.ok) {
-      return { success: false, error: `HTTP ${res.status}: ${await res.text()}` };
+      const body = await res.text();
+      return { success: false, error: `HTTP ${res.status}: ${body.slice(0, 300)}` };
     }
     const data = await res.json() as { file_path?: string };
     const webUrl = data.file_path
@@ -169,6 +227,9 @@ async function pushGitLab(
       : undefined;
     return { success: true, url: webUrl };
   } catch (e) {
+    if (e instanceof Error && e.name === "AbortError") {
+      return { success: false, error: `Request timed out after ${TIMEOUT_MS / 1000}s.` };
+    }
     return { success: false, error: e instanceof Error ? e.message : String(e) };
   }
 }