docs(release): qualify interactive chat fixes for v0.4.0 source

[AetherAI3]

Summary

• Update the v0.4.0 source-candidate operator packet after the interactive chat home-directory incident.
• Bind the current source record to merged main b037891d361ab295cd1fcba7e7dae00b626ac4fd, the 0.3.2 npm latest observation, and exact-main CI, CodeQL and release-truth runs.
• Record what merged test(release): verify packed interactive recovery from stalled 401 #180, Reject undelimited SSE frames at EOF #181 and Fix home-folder chat stall during instruction discovery #182 verify and preserve the separate installed-package, real Windows account, ATS, Cloud, browser and legal gates. Add a dated candidate note and release index entry.

Verification

• Exact main CI 36350635579, CodeQL 36350635637 and release truth 36350635471 passed.
• Local build and the focused release-coherence suite passed (17/17). git diff --check passed. Repository CI on this PR will qualify its new head.
• Public text uses %USERPROFILE% and contains no username, account chat ID, token, or personal usage/cost figures.

This PR does not tag, publish, or assert that v0.4.0 is available from npm. Live and legal release gates remain open.