feat(workflow): Add workflow plugin v1.0.0

Git workflow, code quality, context management and testing commands:
- commit, push, pr, issue - git operations
- simplify, refactor, verify, check - code quality
- catchup, onboard, save, cleanup - context management
- test, format, sync - development utilities

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

plugins/workflow/commands/push.md

@@ -0,0 +1,107 @@
+---
+description: Push to remote with safety checks
+argument-hint: [remote] [branch] - Optional remote and branch (defaults to origin and current branch)
+---
+
+# Safe Push
+
+## Pre-computed Context
+
+**Current Branch:**
+!`git branch --show-current`
+
+**Upstream Branch:**
+!`git rev-parse --abbrev-ref --symbolic-full-name @{u} 2>/dev/null || echo "No upstream configured"`
+
+**Commits to Push:**
+!`git log --oneline @{u}..HEAD 2>/dev/null || echo "No upstream or no commits to push"`
+
+**Local vs Remote:**
+!`git status -sb | head -1`
+
+**Uncommitted Changes:**
+!`git status --porcelain | wc -l | xargs -I{} sh -c 'if [ {} -eq 0 ]; then echo "Working tree clean"; else echo "{} uncommitted changes"; fi'`
+
+---
+
+## Instructions
+
+You are pushing commits to the remote repository with safety checks.
+
+### 1. Pre-flight Checks
+
+Before pushing, verify:
+
+- [ ] **No uncommitted changes**: Ensure everything is committed
+- [ ] **Not pushing to protected branch**: Warn if pushing directly to main/master
+- [ ] **Upstream configured**: Set upstream if needed
+
+### 2. Protected Branch Warning
+
+If current branch is `main` or `master`:
+```
+WARNING: You are pushing directly to the main branch.
+Consider creating a feature branch and PR instead.
+Continue? [y/N]
+```
+
+### 3. Set Upstream (if needed)
+
+If no upstream is configured:
+```bash
+git push -u origin $(git branch --show-current)
+```
+
+### 4. Execute Push
+
+Standard push:
+```bash
+git push
+```
+
+With explicit remote/branch:
+```bash
+git push origin <branch>
+```
+
+### 5. Verify
+
+After push, show status:
+```bash
+git status -sb
+```
+
+---
+
+## Safety Rules
+
+**NEVER run these without explicit user request:**
+- `git push --force`
+- `git push --force-with-lease`
+- `git push -f`
+
+**If push is rejected:**
+1. Run `git fetch` to see remote state
+2. Explain the divergence
+3. Suggest: `git pull --rebase` then push again
+4. Only suggest force push if user explicitly asks
+
+---
+
+## Common Scenarios
+
+**First push of new branch:**
+```bash
+git push -u origin feature/my-branch
+```
+
+**Push after rebase (requires user confirmation):**
+```bash
+# Only with explicit user approval:
+git push --force-with-lease
+```
+
+**Push to different remote:**
+```bash
+git push upstream main
+```