Task: Integrate Bash tool bridge fix

Identity

Merge completed feature task 20260902-fix-bash-tool-bridge-9c4e7a12 (49112b6) into local main.
Reconcile the write-leased Pi tool-batch rule with README, canonical current state, and the evidence index.
Re-run focused real-process coverage, typecheck, and the production Vite build on the integrated tree, then restart the local Makelore platform.

Preserve the feature task's bounded semantics: only tools that acquire the project write lease are serialized; read-only Pi tool batches remain parallel.
Do not replay or mutate the user's accepted, currently stuck Conversation as a smoke test. Use the disposable real-process regression instead.
Merge only to local main; do not push, package, deploy, or alter unrelated user changes.
Treat production build success as proof that packaging consumes the fixed resources, not as permission to claim an installer artifact was produced.

Merged source commit 49112b6 into local main as merge commit 55bf80e.
Integrated the bounded Pi tool-batch correction: built-in bash, edit, and write, plus dynamic product tools that acquire the project write lease, are sequential within one assistant response. Read-only batches retain parallel execution.
Updated README, canonical current state, and the evidence index with the exact failure mechanism and verification boundary. A production build was verified; no installer was created, pushed, deployed, or published.
Stopped the old development process cleanly so its already-open Agent Server could not keep serving the pre-fix resource. The platform restart is the final operational handoff after the integration commit.

Source branch: the pre-fix real-process regression reproduced the second Bash result as fetch failed under a 250 ms managed-extension HTTP idle timeout.
Source branch: 3 focused files / 9 tests, 213 full files / 1,733 tests with 3 skipped, typecheck, lint with 0 errors / 5 existing warnings, and the full Renderer/Main/Preload/utility Vite production build passed.
Integrated main: the 3 focused Pi process/extension/worker files passed all 9 tests, pnpm run typecheck passed, and pnpm run build:vite passed for all four production targets.
The regression verifies that a timed-out first Bash does not block the second Bash, the second returns SECOND_OK, and neither result contains fetch failed.

A signed installer is unnecessary to correct this source-level deadlock. Build an installer only when release validation or distribution is requested; the normal packaged resource path already consumes the corrected Agent Server and v5 extension bundle.

None; the relevant runtime contract and evidence were promoted during this integration task.