Task: Promote packaged Pi runtime fix to main

Identity

Fast-forward the exact verified packaged Pi Agent Server resolver candidate 42ea83c0cbad52432eca99e4161e0360bef3e219 from local main base 7f0e9310a7f394249fab3cadc5c82d70f91cbfeb.
Preserve the candidate's product tree and accepted canonical facts while keeping source and intermediate integration task records on their owning branches.
Complete the task-aware documentation gate and release main ownership from a clean worktree; do not push, publish, package, or deploy.

Pi 0.84.2 remains the only production Coding runtime; Electron Main remains the Agent Server owner, and the bundle layout, Provider/Renderer contracts, recovery behavior, and public APIs remain unchanged.
The currently installed client predates this fix. Local source integration must not be represented as a rebuilt or installed-package acceptance result.
Concurrent Task Gate passed after the previous clean, ready feature owner of main was released non-forcibly. This task exclusively owns main and the Integration Lock.
Planning and Integration Gates passed using the source outcome, verified candidate, current-state, ADR-006, evidence index, commitment ledger, and exact Git ancestry; no semantic conflict or human product-direction decision was present.

Fast-forwarded local main from 7f0e9310a7f394249fab3cadc5c82d70f91cbfeb to verified integration candidate 42ea83c0cbad52432eca99e4161e0360bef3e219 with no merge conflict or replay.
Promoted the packaged Pi Agent Server resolver fix and production-shaped regression to local main; canonical current state and evidence now identify this promotion task.
Omitted the duplicate intermediate integration task record from the promotion tip; it remains recoverable unchanged at candidate 42ea83c0cbad52432eca99e4161e0360bef3e219, while the source task record remains at source 7df245af5a04f62be48980831ff41987ba686009.

Pre-promotion ancestry check passed: local main was an ancestor of the candidate, with 0 main-only and 3 candidate-only commits.
git merge --ff-only succeeded and placed main at exact candidate 42ea83c before this promotion ledger commit.
Candidate verification carried forward unchanged: 4 focused files / 24 tests passed; typecheck passed; lint passed with 0 errors and 5 pre-existing warnings; Vite/Electron Main/Preload/utility build passed. Source full suite passed 215 files / 1,761 tests with 2 conditional skips.
At promotion ledger e1e4b570f98a5c159a01fda740222ce3cd1d755e, the product tree exactly matched verified candidate 42ea83c, the candidate remained an ancestor, task-aware drift and project-docs structure checks passed, the net task diff contained only the two product files plus canonical/own-task memory, and git status was clean.
This closure changes only this task's status and verification record; the same drift, structure, ancestry, product-tree, and clean-status checks are rerun before release.

Rebuild and install the Windows artifact, run the publish/runtime/artifact/final packaged proof, and confirm the first Coding Conversation no longer reports local runtime unavailable.