fix: un-red main — dead import + app-bundle manifest re-pin (#504)

[aarontrowbridge]

Closes #504.

Why: main is red in CI — fast typecheck (dead import left by the catalog removal) and app-bundle-gate drift (the devtools toggle fix #489 hand-copied into the overlay without re-pinning the manifest). Both failures predate the #306 merge; they block cutting the 0.2.4 release.

The fix (zero content change):

• Removes the unused import from the extension entrypoint.
• Re-pins manifest.json to a new fork release tag v1.18.10-amicode.15 — the .14 pin + cherry-pick of the fork's Pin the shipped Piccolo to the vetted 1.19 series #223 devtools fix (exactly the two hand-copied files), so a fresh extraction reproduces the current overlay byte-for-byte. The fork's later uncoordinated work (solver banner, workspace engine, settings permissions) is deliberately excluded — that sync belongs to its own PR.

Fork side (already pushed): release/v1.18.10-amicode.15 branch + tag on harmoniqs/opencode.

Verification: typecheck clean; drift gate PASS with the fork reachable (pins resolve, extraction matches manifest, overlay matches manifest); extension suite 1206 passed / 5 skipped / 100 files.

Summary by CodeRabbit

• Chores
  • Updated application build metadata and file integrity information.
  • Refreshed fork version and extraction metadata.
  • Removed unused internal code without changing user-facing functionality.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8d771a12-8c8a-441c-9cf0-57600041ac29

📥 Commits

Reviewing files that changed from the base of the PR and between f0f5887 and cc2f7a4.

📒 Files selected for processing (2)

• packages/app-bundle/manifest.json
• packages/extension/src/extension.ts

💤 Files with no reviewable changes (1)

• packages/extension/src/extension.ts

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📝 Walkthrough

Walkthrough

The change updates the app-bundle fork pin and related content hashes. It also removes an unused readTomlSafe import from the extension entrypoint.

Changes

Release pin and import cleanup

Layer / File(s)	Summary
App-bundle manifest repin packages/app-bundle/manifest.json	The manifest now records fork tag v1.18.10-amicode.15, its commit SHA, a new extraction timestamp, and refreshed hashes for two overlay files.
Extension import cleanup packages/extension/src/extension.ts	The unused readTomlSafe import is removed.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to cc2f7

This change removes an unused import and re-pins the app-bundle manifest so fresh extraction matches the intended overlay; typecheck, drift validation, and the extension suite pass, so no actionable merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the dead import removal and manifest re-pin, which are the primary changes.
Linked Issues check	✅ Passed	The changes address #504 by removing the unused import and re-pinning the manifest; the #489 fix is included through the referenced fork pin.
Out of Scope Changes check	✅ Passed	The changes are limited to the requested import removal and manifest metadata re-pin, with no unrelated code changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 504-fix-main-red

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