fix(tier2): expand %TEMP% deny patterns to catch env-var forms

Follow-up to the 'NEVER USE APPDATA' directive. The agent kept
trying to use \C:\Users\Ed\AppData\Local\Temp / \C:\Users\Ed\AppData\Local\Temp / %TEMP% / %TMP% — the previous
deny rule (*AppData\\\\* and *AppData\\Local\\Temp\\*) only matched
the literal expanded path, not the env-var form. The agent would
self-block based on its own interpretation of the rule, but it still
TRIED before self-blocking (the 'fucking tired of it fucking with
AppData' complaint).

Fix:
1. opencode.json.fragment: add bash deny patterns matched against
   the LITERAL command string (before shell expansion):
     *\C:\Users\Ed\AppData\Local\Temp*    - PowerShell env var (the form the agent tried)
     *\C:\Users\Ed\AppData\Local\Temp*     - PowerShell env var
     *%TEMP%*        - cmd env var
     *%TMP%*         - cmd env var
     *GetTempPath*   - .NET API
     *gettempdir*    - Python tempfile module
     *mkstemp*       - Python tempfile.mkstemp
   Applied to BOTH the top-level permission.bash (for default agents)
   and the tier2-autonomous agent's permission.bash.

2. conductor/tier2/agents/tier2-autonomous.md: rewrite the Temp
   files section to explicitly list ALL forbidden literals and
   reiterate 'every one of those literal command strings is denied
   at the bash level'. Updated changelog note.

3. conductor/tier2/commands/tier-2-auto-execute.md: same.

4. tests/test_tier2_slash_command_spec.py: extend
   test_config_fragment_denies_temp_writes to assert each of the 9
   patterns in both the top-level and the agent's bash.

Verified: re-ran setup against the live clone. tier2 agent's bash
has 13 deny patterns (9 AppData/temp + 4 git). 37/37 default-on
tests pass.

Note: the user's prior commit (fix(tier2): remove AppData allow
rules from OpenCode permission JSON) already removed the AppData
allow rules from read/write and added the broader *AppData\\\\*
deny rule. This commit layers on top of that with the env-var-form
deny patterns.

conductor/tier2/commands/tier-2-auto-execute.md

@@ -43,7 +43,7 @@ Optional flags: `--resume` (continue from last completed task), `--toast` (Windo
 - **Line endings:** preserve existing (CRLF stays CRLF, LF stays LF)
 - **Throw-away scripts:** write to `scripts/tier2/artifacts/<track-name>/`, NOT the base directory
 - **Run-time expectation:** tracks are 1-4 hours. If context runs out, note progress to disk and continue.
-- **Temp files** (added 2026-06-17, rewritten 2026-06-18, paths updated 2026-06-18 per Tier 2's project-relative relocation): All scratch, state, audit-output, and intermediate files MUST live INSIDE the Tier 2 clone. Default locations: `tests/artifacts/tier2_state/<track>/state.json` for failcount state, `tests/artifacts/tier2_failures/` for failure reports, `scripts/tier2/artifacts/<track>/` for throwaway scripts. **NEVER USE APPDATA** — the AppData tree is OFF-LIMITS. The `*AppData\\*` bash deny rule enforces this.
+- **Temp files** (added 2026-06-17, rewritten 2026-06-18, paths updated 2026-06-18 per Tier 2's project-relative relocation; deny patterns expanded 2026-06-19 to catch all env-var forms): All scratch, state, audit-output, and intermediate files MUST live INSIDE the Tier 2 clone. Default locations: `tests/artifacts/tier2_state/<track>/state.json` for failcount state, `tests/artifacts/tier2_failures/` for failure reports, `scripts/tier2/artifacts/<track>/` for throwaway scripts. **NEVER USE APPDATA** — the AppData tree is OFF-LIMITS. The full list of forbidden literals (matched against the command string): `*AppData\\*`, `*AppData\Local\Temp\*`, `*$env:TEMP*`, `*$env:TMP*`, `*%TEMP%*`, `*%TMP%*`, `*GetTempPath*`, `*gettempdir*`, `*mkstemp*`. Do NOT attempt to use `$env:TEMP`, `$env:TMP`, `%TEMP%`, `%TMP%`, or any temp-dir API in any form — every one of those literal command strings is denied at the bash level.
 
 ## Hard Bans (enforced by 3 layers)