Local dev stack improvements

- Extend docker-compose.dev.yml with optional monitoring profile
  (Prometheus, Grafana, Loki) via --profile monitoring
- Align dev PostgreSQL with production: pg_stat_statements + init scripts
- Add scripts/seed.ts with idempotent Berlin test data (user, route, activity)
- Add pnpm db:seed and pnpm dev:reset scripts
- Simplify CI e2e job: replace manual docker run + BRouter setup with
  docker compose up --wait; add db:seed step
- Improve scripts/dev.sh: Docker check, --wait health checks, --monitoring
  flag, seed step
- Add scripts/reset-dev.sh to wipe and restart the local stack
- Add .env.development.example with documented local defaults

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

scripts/seed.ts

@@ -0,0 +1,72 @@
+import { createDb } from "../packages/db/src/index.ts";
+import { users, routes, activities } from "../packages/db/src/schema/journal.ts";
+
+const db = createDb();
+
+const SEED_USER_ID = "seed-user-dev";
+const SEED_ROUTE_ID = "seed-route-berlin";
+const SEED_ACTIVITY_ID = "seed-activity-berlin";
+
+// Minimal GPX for a short Berlin route (Tiergarten area)
+const BERLIN_GPX = `<?xml version="1.0" encoding="UTF-8"?>
+<gpx version="1.1" creator="trails.cool" xmlns="http://www.topografix.com/GPX/1/1">
+  <trk>
+    <name>Tiergarten Loop</name>
+    <trkseg>
+      <trkpt lat="52.5145" lon="13.3501"><ele>34</ele></trkpt>
+      <trkpt lat="52.5150" lon="13.3560"><ele>35</ele></trkpt>
+      <trkpt lat="52.5170" lon="13.3620"><ele>35</ele></trkpt>
+      <trkpt lat="52.5190" lon="13.3580"><ele>36</ele></trkpt>
+      <trkpt lat="52.5200" lon="13.3510"><ele>35</ele></trkpt>
+      <trkpt lat="52.5145" lon="13.3501"><ele>34</ele></trkpt>
+    </trkseg>
+  </trk>
+</gpx>`;
+
+await db
+  .insert(users)
+  .values({
+    id: SEED_USER_ID,
+    email: "dev@trails.cool",
+    username: "devuser",
+    displayName: "Dev User",
+    domain: "localhost:3000",
+    profileVisibility: "public",
+  })
+  .onConflictDoNothing();
+
+await db
+  .insert(routes)
+  .values({
+    id: SEED_ROUTE_ID,
+    ownerId: SEED_USER_ID,
+    name: "Tiergarten Loop",
+    description: "A short loop through Tiergarten for local dev testing.",
+    gpx: BERLIN_GPX,
+    routingProfile: "trekking",
+    distance: 1200,
+    elevationGain: 5,
+    elevationLoss: 5,
+    visibility: "public",
+  })
+  .onConflictDoNothing();
+
+await db
+  .insert(activities)
+  .values({
+    id: SEED_ACTIVITY_ID,
+    ownerId: SEED_USER_ID,
+    routeId: SEED_ROUTE_ID,
+    name: "Morning walk in Tiergarten",
+    gpx: BERLIN_GPX,
+    startedAt: new Date("2024-06-01T08:00:00Z"),
+    duration: 1800,
+    distance: 1200,
+    elevationGain: 5,
+    elevationLoss: 5,
+    visibility: "public",
+  })
+  .onConflictDoNothing();
+
+console.log("✓ Seed complete");
+process.exit(0);