Add `packages/server-v2`, a minimal Fastify server bootstrapped through the
`agent-core-v2` DI engine (`bootstrap()` -> Core `Scope`), speaking the same
`/api/v1` interface as the v1 server. Route handlers resolve Core services
via `core.accessor.get(IXxx)`.
- Serve healthz, meta, auth, oauth (login poll/start/cancel/logout) and
shutdown with the standard `{code, msg, data, request_id}` envelope.
- Re-point root `pnpm dev:server` to server-v2 and add a `src/main.ts`
foreground entry.
- Add `build/hash-imports-loader.mjs` so tsx resolves `agent-core-v2`'s `#/`
array-fallback subpath imports.
- `agent-core-v2` Phase 0 fixes so it compiles and boots: add the `event`
domain (`IEventService`), fix `gateway` `event.subscribe` -> `event.on`, fix
the `wireRecord` fallback `BlobStoreService` construction, export the
`provider` barrel, and fix a `tooldedup` test import casing.
* chore(flake): simplify nix build and add ci validation
- Replace dynamic pnpm-workspace.yaml parsing with hardcoded workspacePaths
and workspaceNames to reduce format assumptions
- Remove update-pnpm-deps script and kimi-code-pnpm-deps package; use
lib.fakeHash for standard hash mismatch workflow
- Remove nodejs_latest fallback in nodejsFor, hardcode to nodejs_24
- Add nix-build CI workflow that posts hash-mismatch details to PR comments
- Remove unused Nix installation step from release.yml
- Add workspace maintenance note to AGENTS.md
