fix(tier2): deny %TEMP% writes - use app-data dir for temp files

The Tier 2 agent wrote audit_exception_handling.py output to
C:\\Users\\Ed\\AppData\\Local\\Temp\\audit_initial.json via shell
redirection. This is OUTSIDE the sandbox allowlist (which is
C:\\projects\\manual_slop_tier2 + C:\\Users\\Ed\\AppData\\Local\\
manual_slop\\tier2 + C:\\Users\\Ed\\AppData\\Local\\manual_slop\\
tier2_failures). The OpenCode session-level guard fires the 'ask'
prompt for paths outside the project root, which has no answer in an
autonomous session, so ops halted mid-track.

Fix (3 layers):

1. opencode.json.fragment: add bash deny rule
   '*AppData\\Local\\Temp\\*': 'deny' to BOTH the top-level
   permission.bash (for default agents) and the tier2-autonomous
   agent's permission.bash. The agent physically cannot run shell
   commands that target the global Temp dir.

2. conductor/tier2/agents/tier2-autonomous.md: add 'Temp files'
   convention telling the agent to use
   C:\\Users\\Ed\\AppData\\Local\\manual_slop\\tier2\\ for scratch
   / audit-output / intermediate files, NOT %TEMP%.

3. conductor/tier2/commands/tier-2-auto-execute.md: same convention
   in the slash command so the agent sees it at slash-command time.

Tests (default-on):
- test_agent_denies_temp_writes: agent prompt has the Temp deny in
  frontmatter bash + the app-data dir note
- test_config_fragment_denies_temp_writes: both top-level and agent
  bash have the deny rule

All 16 tier 2 slash command tests pass.

Also: cleaned up the leaked audit_initial.json + audit.json +
audit_after*.json from %TEMP% (they were leftovers from a prior
run). Re-ran setup against the live clone; opencode.json's agent
bash and top-level bash both have the deny rule.

conductor/tier2/agents/tier2-autonomous.md

@@ -17,6 +17,7 @@ permission:
     "C:\\Users\\Ed\\AppData\\Local\\manual_slop\\tier2_failures\\**": allow
   bash:
     "*": allow
+    "*AppData\\Local\\Temp\\*": deny
     "git push*": deny
     "git checkout*": deny
     "git restore*": deny
@@ -43,6 +44,7 @@ You are running inside a Windows restricted token. The OpenCode permission syste
 - **Throw-away scripts:** write them to `scripts/tier2/artifacts/<track-name>/`, NOT the base `scripts/tier2/` directory. The base directory is reserved for production code that ships with the sandbox (failcount.py, run_track.py, write_report.py, the .ps1 launchers). Throw-away scripts are kept for archival but live in a track-specific subdir so they don't pollute the base.
 - **End-of-track report:** after all tasks complete, you MUST write `docs/reports/TRACK_COMPLETION_<track-name>.md` (follow the precedent set by `TRACK_COMPLETION_tier2_autonomous_sandbox_20260616.md`) and update `conductor/tracks/<track-name>/state.toml` to `status = "completed"`. This is the handoff document the user reads to decide merge.
 - **Run-time expectation:** tracks are expected to take 1-4 hours. If the model reports it is running out of context or steps, do not stop. Note progress to disk (the failcount state file) and continue. The user expects autonomous runs to complete without manual intervention.
+- **Temp files** (added 2026-06-17): NEVER write to `C:\Users\Ed\AppData\Local\Temp\` or `%TEMP%`. Use `C:\Users\Ed\AppData\Local\manual_slop\tier2\` for all scratch / audit-output / temp files. The bash deny rule `*AppData\Local\Temp\*` will block writes to the global Temp dir, and OpenCode's outer guard will fire the "ask" prompt for reads — both halt ops. Examples: `uv run python scripts/audit_exception_handling.py --json > C:\Users\Ed\AppData\Local\manual_slop\tier2\audit_initial.json` (NOT `%TEMP%\audit_initial.json`).
 
 ## Failcount Contract