perf: bundle HTTP pushes and prepare Graft 0.11.0

[mayneyao]

Summary

• add safe push tracing and benchmark coverage for CLI and resident SDK paths
• add receive-pack and receive-bundle with compatible object-by-object fallback
• reduce an incremental HTTP push from six data-plane requests to two
• publish reusable Remote core, Hono, and Cloudflare packages through a new independent release train
• prepare Graft 0.11.0 and @eidos.space/graft 0.2.0

Verification

• 600/600 Rust tests passed; 1 skipped
• 82/82 doctests passed
• 5 SQLite SQL suites passed
• 201/201 focused graft tests passed after lint cleanup
• 8/8 native RepositorySession tests passed on local macOS arm64
• Remote typecheck, 20 Workers/runtime tests, 6 release-contract tests, tarball install smoke, and Wrangler dry-run passed
• cargo fmt, CI-equivalent Clippy, locked workspace check, and release build passed

Release plan after merge

• annotated v0.11.0 for CLI and SQLite extension
• annotated graft-sdk-v0.2.0 for the resident npm SDK
• annotated graft-remote-v0.1.0 for the three first-public Remote packages
• verify public artifacts before updating and building Eidos

Performance evidence

• resident one-row SQLite push p50/p95: 5.228/8.100s before, 3.158/4.251s after
• HTTP data-plane requests for the incremental SQLite push: 6 before, 2 after
• full methodology and residual network attribution are in docs/push-performance-investigation.md