Update push status after credential setup

TODO.md

@@ -538,11 +538,8 @@
 - Current state:
   - latest work in this environment has been pushed successfully multiple times after the earlier remote unpacker issue
   - the older push failure note is historical context only and should not be treated as the current repo state
-  - on `2026-03-17`, local commit `6e9d20b` (`Document fresh-machine setup and status`) was created successfully on this machine
-  - push from this machine is currently blocked because HTTPS auth is not configured here:
-    - `fatal: cannot exec '/usr/bin/ksshaskpass': No such file or directory`
-    - `fatal: could not read Username for 'https://git.savethenurse.com': No such device or address`
-  - until credentials are provided/configured, the latest documentation update remains local-only
+  - on `2026-03-17`, local commits `6e9d20b` and `0495f34` were created during fresh-machine environment validation and documentation cleanup
+  - push from this machine was initially blocked by missing HTTPS auth helper configuration, but succeeded after explicit credentials were provided by the user
 - Operational note:
   - because the frontend is static and aggressively cached, browser hard refreshes are often required after UI / modal / preview changes
 
@@ -620,7 +617,7 @@
   - Re-audited the repository structure and `TODO.md` handover state on a fresh machine.
   - Bootstrapped a user-local development toolchain because the machine initially lacked `go`, `pip`, `ffmpeg`, and `yt-dlp`.
   - Revalidated the documented self-test flow and updated this handover document with environment notes, current verification status, and next-step priorities.
-  - Committed the documentation update locally as `6e9d20b` (`Document fresh-machine setup and status`).
+  - Committed the documentation update locally as `6e9d20b` (`Document fresh-machine setup and status`) and `0495f34` (`Record local-only push failure`), then completed the delayed push after credentials were supplied.
 - Why it changed:
   - Ongoing work will happen from different PCs, so the project needed an explicit record of what this repo requires to become runnable when root-level package installation is unavailable.
 - How it was verified:
@@ -632,7 +629,7 @@
 - What is still risky or incomplete:
   - This machine still has no `node`, so any future frontend build/lint workflow will need an explicit setup step before it can become part of local verification.
   - The environment bootstrap done here is user-local rather than repo-automated, so reproducing it on another PC is still partly manual until a bootstrap script or setup doc lands.
-  - Push of this update failed on this machine because Git HTTPS credentials / askpass integration are not configured yet, so the change is currently local-only.
+  - HTTPS push on this machine currently depends on manually supplied credentials, so a safer long-term credential helper or SSH setup is still worth documenting later.
 
 - Date: `2026-03-16`
 - What changed: