Add MVP features: edit mode, voice input, Gitea push, service autocomplete

- new.tsx: edit mode via editId param, per-field voice dictation (MIC/STOP),
  service autocomplete dropdown from DB history
- incident/[id].tsx: Push to Gitea action reads SecureStore config + md template
- index.tsx: homeView=capture redirects to /new on first mount
- _layout.tsx: onboarding gate wired (useSettings + router.replace)
- ci: GitHub Actions workflow builds debug APK via expo prebuild + Gradle

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

app/index.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from "react";
+import { useEffect, useRef, useState } from "react";
 import {
   View,
   Text,
@@ -8,12 +8,23 @@ import {
 } from "react-native";
 import { router } from "expo-router";
 import { getIncidents } from "@/lib/db";
+import { useSettings } from "@/hooks/useSettings";
 import type { Incident } from "@/types/incident";
 import { Colors } from "@/constants/theme";
 
 export default function HomeScreen() {
   const [incidents, setIncidents] = useState<Incident[]>([]);
   const [loading, setLoading] = useState(true);
+  const { settings, ready } = useSettings();
+  const didRedirect = useRef(false);
+
+  useEffect(() => {
+    if (!ready || didRedirect.current) return;
+    if (settings.homeView === "capture") {
+      didRedirect.current = true;
+      router.push("/new");
+    }
+  }, [ready, settings.homeView]);
 
   useEffect(() => {
     loadIncidents();