Make the repo status report weekly and rename the workflow to match

Switch the repo-status schedule from daily to a fixed cron at 12:00 UTC
on Sundays (fixed rather than gh-aw's fuzzy "weekly" shorthand, which
scatters the run time). Rename daily-repo-status to weekly-repo-status
across the workflow, its lock file, post-compile.sh, COPILOT_TOKENS.md,
and the rotation comment in daily-issue-triage; the report label becomes
weekly-status. The [repo-status] title-prefix is kept so
close-older-issues still closes the previous daily report issues.

Author: vishesh92

.github/COPILOT_TOKENS.md

@@ -58,7 +58,7 @@ expiration; when it lapses the health check (below) will flag it and you can re-
 
 ## How rotation works (for maintainers)
 
-Each agent workflow (`daily-repo-status`, `daily-issue-triage`) defines a `pick_copilot_token`
+Each agent workflow (`weekly-repo-status`, `daily-issue-triage`) defines a `pick_copilot_token`
 job in its `.md` source. The job has to run outside the agent job because strict mode forbids
 reading secrets there. It picks today's alias by day-of-year mod N, checks the token is live
 (`GET /user` returns 200, otherwise it moves on to the next candidate) and outputs the chosen

.github/scripts/post-compile.sh

@@ -39,7 +39,7 @@ cd "$(git rev-parse --show-toplevel)"
 export NEWVAL='${{ needs.pick_copilot_token.outputs.name != '"'"''"'"' && secrets[format('"'"'COPILOT_GITHUB_TOKEN_{0}'"'"', needs.pick_copilot_token.outputs.name)] || secrets.COPILOT_GITHUB_TOKEN }}'
 
 FILES=(
-  ".github/workflows/daily-repo-status.lock.yml"
+  ".github/workflows/weekly-repo-status.lock.yml"
   ".github/workflows/daily-issue-triage.lock.yml"
 )
 

.github/workflows/daily-issue-triage.lock.yml

@@ -25,7 +25,7 @@ engine:
 # Strict mode forbids reading secrets in the agent job, so this job picks today's
 # token and outputs its alias only; the agent job resolves the secret itself.
 # ROTATION_SLOT 1 staggers this workflow half the pool away from
-# daily-repo-status so the two pick different tokens (pool of 2 or more).
+# weekly-repo-status so the two pick different tokens (pool of 2 or more).
 # After `gh aw compile`, run `bash .github/scripts/post-compile.sh` to re-wire the
 # agent job to this output.
 jobs: