docs(polecat): remove push instructions for local-only branches (gt-cqw0n)

Phase 3 of heresy correction: polecat branches stay local, Refinery
accesses them via shared .repo.git.

Changes:
- templates/polecat-CLAUDE.md: Remove push from completion checklist
- mol-polecat-work.formula.toml: Remove push step from cleanup-workspace
- polecat.md.tmpl: Update landing rule for local branches
- refinery.md.tmpl: Change origin/polecat to local branch references

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/formula/formulas/mol-polecat-work.formula.toml

@@ -362,20 +362,14 @@ Should be empty. If not:
 - Pop and commit: `git stash pop && git add -A && git commit`
 - Or drop if garbage: `git stash drop`
 
-**4. Push your branch:**
-```bash
-git push -u origin $(git branch --show-current)
-```
-
-**5. Verify nothing left behind:**
+**4. Verify nothing left behind:**
 ```bash
 git status                  # Clean
 git stash list              # Empty
-git log origin/main..HEAD   # Your commits
-git diff origin/main...HEAD # Your changes (expected)
+git log origin/main..HEAD   # Your commits (local only, not pushed)
 ```
 
-**Exit criteria:** Branch pushed, workspace clean, no cruft."""
+**Exit criteria:** Workspace clean, commits ready for Refinery."""
 
 [[steps]]
 id = "prepare-for-review"
@@ -442,7 +436,7 @@ You should see output like:
 
 **3. You're recyclable:**
 Your work is in the queue. The Witness knows you're done.
-Your sandbox can be cleaned up - all work is pushed to origin.
+Refinery will access your local branch via shared .repo.git.
 
 If you have context remaining, you may:
 - Pick up new work from `bd ready`