Handle Vault 109 quest handoff

When the local player leaves COVault109, the plugin now completes MQ101 and starts MQ102 at stage 10 on the game thread, with a log entry for confirmation. Updated the changelog and architecture/dev-log docs to reflect the new Vault 109 flow, and refreshed the compiled Creation Kit script artifact.

changelog.md

@@ -10,6 +10,7 @@ For testing notes, milestone summaries, known issues, and next steps, see [`docs
 ## [Unreleased]
 
 ### Added
+- `COVault109` exit handoff in the plugin: when the local player leaves the solo cell, MQ101 (`War Never Changes`) is completed and MQ102 (`Out of Time`) is started at stage 10.
 - Optional `isPipboyOpen` transform state so receivers can detect remote Pip-Boy open/close transitions. The state is synced and logged for diagnostics; no proxy Pip-Boy animation is driven (the third-person humanoid behavior graph has no Pip-Boy raise/use animation — it is first-person only), leaving room for a future custom third-person animation.
 - Optional `appearance` transform snapshots for best-effort runtime proxy body and face visuals, including height, body morph weight, body tint, hair colors, head-part IDs, and morph slider values while leaving gender switching out.
 - Game-thread proxy appearance application for supported `appearance` fields after runtime proxy 3D is ready, with race switching deferred for future proxy-base compatibility work.