Add 3 new skills (basecamp, brainstorming, plan-writing) and update agent model

- basecamp: Basecamp project management via MCP (todos, kanban, projects)
- brainstorming: General-purpose ideation with Anytype save
- plan-writing: Project planning with templates (kickoff, stakeholders, tasks, risks)
- Update agent model from GPT-4o to minimax-m2.1-free
- Update README with new skills

skill/plan-writing/assets/templates/project-kickoff.md

@@ -0,0 +1,106 @@
+# Project Kickoff: [Project Name]
+
+## 1. Project Essentials
+
+| Field | Value |
+|-------|-------|
+| **Project Name** | [Name] |
+| **Owner** | [Name] |
+| **Start Date** | [YYYY-MM-DD] |
+| **Target Completion** | [YYYY-MM-DD] |
+| **PARA Area** | [Area, if applicable] |
+
+### Overview
+
+[2-3 sentence description of what this project will accomplish and why it matters.]
+
+## 2. Goals and Success Criteria
+
+**Primary Goal**: [One sentence describing the end state - what does "done" look like?]
+
+**Success Criteria**:
+- [ ] [Measurable criterion 1]
+- [ ] [Measurable criterion 2]
+- [ ] [Measurable criterion 3]
+
+**Out of Scope** (explicitly):
+- [Item that might be assumed but is NOT included]
+- [Another exclusion]
+
+## 3. Stakeholders
+
+| Role | Person | Involvement Level |
+|------|--------|-------------------|
+| Project Owner | [Name] | High - decisions |
+| Core Team | [Names] | High - execution |
+| Informed | [Names] | Low - updates only |
+| Approver | [Name, if any] | Medium - sign-off |
+
+## 4. Timeline and Milestones
+
+| Milestone | Target Date | Dependencies | Owner |
+|-----------|-------------|--------------|-------|
+| [Milestone 1] | [Date] | None | [Who] |
+| [Milestone 2] | [Date] | Milestone 1 | [Who] |
+| [Milestone 3] | [Date] | Milestone 2 | [Who] |
+| **Project Complete** | [Date] | All above | [Owner] |
+
+### Key Dates
+
+- **Kickoff**: [Date]
+- **First Review**: [Date]
+- **Final Deadline**: [Date]
+
+## 5. Scope
+
+### In Scope
+
+- [Deliverable 1]: [Brief description]
+- [Deliverable 2]: [Brief description]
+- [Deliverable 3]: [Brief description]
+
+### Out of Scope
+
+- [Explicitly excluded item 1]
+- [Explicitly excluded item 2]
+
+### Assumptions
+
+- [Assumption 1 - e.g., "Budget approved"]
+- [Assumption 2 - e.g., "Team available full-time"]
+
+## 6. Risks
+
+| Risk | Probability | Impact | Mitigation | Owner |
+|------|-------------|--------|------------|-------|
+| [Risk 1] | H/M/L | H/M/L | [Plan] | [Who] |
+| [Risk 2] | H/M/L | H/M/L | [Plan] | [Who] |
+
+*See detailed risk register if needed: [link to risks.md]*
+
+## 7. Communication Plan
+
+| What | Audience | Frequency | Channel | Owner |
+|------|----------|-----------|---------|-------|
+| Status Update | All stakeholders | Weekly | [Email/Basecamp] | [Who] |
+| Team Sync | Core team | [Daily/2x week] | [Meeting/Slack] | [Who] |
+| Milestone Review | Approvers | At milestone | [Meeting] | [Who] |
+
+### Escalation Path
+
+1. First: [Team lead/Owner]
+2. Then: [Manager/Sponsor]
+3. Finally: [Executive, if applicable]
+
+## 8. Next Steps
+
+Immediate actions to kick off the project:
+
+- [ ] [Action 1] - @[owner] - Due: [date]
+- [ ] [Action 2] - @[owner] - Due: [date]
+- [ ] [Action 3] - @[owner] - Due: [date]
+
+---
+
+*Document created: [Date]*
+*Last updated: [Date]*