v3.0.0: unified TypeScript core + single-binary Bun server (delete Python backend)

[hessius]

Summary

Epic for v3.0.0. Collapse the two runtimes (Python FastAPI server + Capacitor pure-TS direct mode) onto a single shared TypeScript core (packages/core) consumed by both a React frontend and a compiled Bun server. Deletes the Python backend, drops MQTT/Home Assistant + the MCP server, and slims the container to a distroless single binary.

Not started — planned to begin after 2.6.0 beta and 2.7.0 ship.

Design + plan

Branch: version/3.0.0

• Design spec: docs/superpowers/specs/2026-07-02-unified-ts-core-bun-server-3.0.0-design.md
• Implementation plan (7 phases): docs/superpowers/plans/2026-07-02-unified-ts-core-bun-server-3.0.0.md

Related

• refactor(native): split the ~3.6k-line DirectModeInterceptor into route modules #528 — DirectModeInterceptor refactor (subsumed by Phase 2 core extraction)
• v3.0: migrate flat-JSON persistence to SQLite behind the Storage interface #531 — flat-JSON → SQLite persistence follow-up (Phase 4)

[hessius]

Done in PR #561. The unified TypeScript core (@metic/core) is the single source of truth consumed by both runtimes; the Python backend (apps/server) and the legacy interceptor are deleted; the app ships as a distroless single-binary Bun image with a CI size gate. Child issues #528 and #531 are complete. Ships as v3.0.0-beta.1.