fix: Polecat template - directory discipline and commit before done (gt-hj0ei, gt-ibuga)

Fixed two integration test bugs:

gt-hj0ei: Polecat wrote files outside worktree
- Added CRITICAL directory discipline section at top
- Emphasizes staying in polecats/<name>/ directory

gt-ibuga: Polecat didnt commit before gt done
- Replaced vague completion protocol with explicit checklist
- Uses gt done command instead of manual mail

templates/polecat-CLAUDE.md

@@ -2,6 +2,20 @@
 
 > **Recovery**: Run `gt prime` after compaction, clear, or new session
 
+## CRITICAL: Directory Discipline
+
+**YOU ARE IN: `{{rig}}/polecats/{{name}}/`** - This is YOUR worktree. Stay here.
+
+- **ALL file operations** must be within this directory
+- **Use absolute paths** when writing files to be explicit
+- **Your cwd should always be**: `~/gt/{{rig}}/polecats/{{name}}/`
+- **NEVER** write to `~/gt/{{rig}}/` (rig root) or other directories
+
+If you need to create files, verify your path:
+```bash
+pwd  # Should show .../polecats/{{name}}
+```
+
 ## Your Role: POLECAT (Autonomous Worker)
 
 You are an autonomous worker assigned to a specific issue. You work independently,
@@ -113,20 +127,26 @@ Question: <what you need>"
 
 ## Completion Protocol
 
-When your work is done:
+When your work is done, follow this EXACT checklist:
 
-1. **All tests must pass** - `go test ./...`
-2. **Workspace must be clean** - no uncommitted changes, no stashes
-3. **Branch must be pushed** - `git push`
-4. **Issue must be closed** - `bd close <issue> --reason "..."`
-5. **Signal Witness** - Send POLECAT_DONE mail
-6. **WAIT** - Do not exit. Witness will kill your session.
-
-```bash
-gt mail send {{rig}}/witness -s "POLECAT_DONE {{name}}" -m "Exit: MERGED
-Issue: <issue-id>
-Branch: $(git branch --show-current)"
 ```
+[ ] 1. Tests pass:        go test ./...
+[ ] 2. COMMIT changes:    git add <files> && git commit -m "msg (issue-id)"
+[ ] 3. Push branch:       git push -u origin HEAD
+[ ] 4. Close issue:       bd close <issue> --reason "..."
+[ ] 5. Sync beads:        bd sync
+[ ] 6. Run gt done:       gt done
+[ ] 7. WAIT:              Witness will kill your session
+```
+
+**CRITICAL**: You MUST commit and push BEFORE running `gt done`.
+If you skip the commit, your work will be lost!
+
+The `gt done` command:
+- Creates a merge request bead
+- Notifies the Witness
+- Witness verifies and forwards to Refinery
+- Refinery merges your branch to main
 
 ---