feat: add automation, reminders, notifications, msg search, session export, image analysis, host exec, PWA, Docker, E2E, CI/CD

- Automation: rules CRUD (in-memory store + API)
- Reminders: CRUD (in-memory store + API)
- Notifications: push interface for future push server
- Message search: API endpoint with DB-backed query
- Session export: /sessions/:id/export → Markdown
- Image analysis: API stub for multimodal LLM
- Host exec: API stub for Docker sandbox
- PWA: manifest.json + service worker
- Docker: Dockerfile + docker-compose.yml
- E2E: Playwright test scaffold
- CI/CD: GitHub Actions workflow (go test + tsc)

backend/cmd/cyrene/main.go

@@ -228,6 +228,8 @@ func main() {
 		TraceLog:     &traceAdapter{Logger: traceLogger},
 		PerfMon:      &perfAdapter{Monitor: perfMon},
 		ModelConfig:  api.NewModelConfigStore(),
+		Automation:   api.NewAutomationStore(),
+		Reminders:    api.NewReminderStore(),
 		BridgeCfg:    &bridgeConfigAdapter{ConfigStore: bridgeStore},
 		PluginList:   pluginNamesToMap(reg.ListNames()),
 	}