feat: add garden module infrastructure (task 70)

- Add MinIO service to compose.yaml with named volume
- Add generic /api/uploads POST+GET route with auth, 5 MB, image/* guards
- Add src/lib/minio.ts singleton client with ensureBucket helper
- Add garden Drizzle schema: containers, plants, care_logs, care_schedules, species_cache
- Register garden module in src/modules/index.ts and src/lib/db.ts
- Apply migration 0015_garden_schema.sql
- Add MINIO_* and PERENUAL_API_KEY to .env.example
- Add task briefs 70-75 for the full garden feature arc
- Add uploads.spec.ts E2E test (RED → GREEN on route auth guard)

src/modules/index.ts

@@ -3,8 +3,10 @@ import coreManifest from "./_core/manifest";
 import calendarManifest from "./calendar/manifest";
 import listsManifest from "./lists/manifest";
 import notesManifest from "./notes/manifest";
+import gardenManifest from "./garden/manifest";
 
 registerModule(coreManifest);
 registerModule(calendarManifest);
 registerModule(listsManifest);
 registerModule(notesManifest);
+registerModule(gardenManifest);