Add new commands, skills, and agents; remove token loading script

- Add groom, plan-issues, and roadmap commands
- Add skills for backlog-grooming, forgejo, issue-writing, roadmap-planning
- Add agents directory structure
- Remove load-forgejo-token.sh and SessionStart hook (using fj auth instead)

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

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

skills/roadmap-planning/SKILL.md

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+# Roadmap Planning
+
+How to plan features and create issues for implementation.
+
+## Planning Process
+
+### 1. Understand the Goal
+- What capability or improvement is needed?
+- Who benefits and how?
+- What's the success criteria?
+
+### 2. Break Down the Work
+- Identify distinct components
+- Define boundaries between pieces
+- Aim for issues that are:
+  - Completable in 1-3 focused sessions
+  - Independently testable
+  - Clear in scope
+
+### 3. Identify Dependencies
+- Which pieces must come first?
+- What can be parallelized?
+- Are there external blockers?
+
+### 4. Create Issues
+- Follow issue-writing patterns
+- Reference dependencies explicitly
+- Use consistent labeling
+
+## Breaking Down Features
+
+### By Layer
+```
+Feature: User Authentication
+├── Data layer: User model, password hashing
+├── API layer: Login/logout endpoints
+├── UI layer: Login form, session display
+└── Integration: Connect all layers
+```
+
+### By User Story
+```
+Feature: Shopping Cart
+├── Add item to cart
+├── View cart contents
+├── Update quantities
+├── Remove items
+└── Proceed to checkout
+```
+
+### By Technical Component
+```
+Feature: Real-time Updates
+├── WebSocket server setup
+├── Client connection handling
+├── Message protocol
+├── Reconnection logic
+└── Integration tests
+```
+
+## Issue Ordering
+
+### Dependency Chain
+Create issues in implementation order:
+1. Foundation (models, types, interfaces)
+2. Core logic (business rules)
+3. Integration (connecting pieces)
+4. Polish (error handling, edge cases)
+
+### Reference Pattern
+In issue descriptions:
+```markdown
+## Dependencies
+- Depends on #12 (user model)
+- Depends on #13 (API setup)
+```
+
+## Creating Issues with fj
+
+### Single Issue
+```bash
+fj issue create "Add user authentication endpoint" --body "$(cat <<'EOF'
+## Summary
+Create POST /api/auth/login endpoint for user authentication.
+
+## Acceptance Criteria
+- [ ] Endpoint accepts email and password
+- [ ] Returns JWT token on success
+- [ ] Returns 401 on invalid credentials
+- [ ] Rate limits login attempts
+
+## Dependencies
+- Depends on #5 (user model)
+EOF
+)"
+```
+
+### Batch Creation
+When creating multiple related issues:
+1. Plan all issues first
+2. Create in dependency order
+3. Update earlier issues with forward references
+
+## Roadmap View
+
+To see current roadmap:
+1. List open issues: `fj issue search -s open`
+2. Group by labels/milestones
+3. Identify blocked vs ready issues
+4. Prioritize based on dependencies and value
+
+## Planning Questions
+
+Before creating issues, answer:
+- "What's the minimum viable version?"
+- "What can we defer?"
+- "What are the riskiest parts?"
+- "How will we validate each piece?"