Windsurf + Aider targets, MCP server, and demo placement (#33)

Broadens both reach (more tools) and content types (an MCP server), continuing
the multi-platform story.

Windsurf + Aider:
- build-exports.mjs gains two platforms: exports/windsurf/*.md (workspace rules,
  trigger: model_decision) and exports/aider/*.md (conventions for `aider --read`).
  Now 5 platforms (ChatGPT, Gemini, Cursor, Windsurf, Aider).
- install.sh + bin/cli.mjs install both (windsurf -> .windsurf/rules, aider ->
  .aider/skills with a --read hint); generated README index is excluded from copies.
- One-line windsurf-install.sh / aider-install.sh wrappers for parity.

MCP server (new content type):
- mcp/server.mjs — zero-dependency stdio MCP server exposing list_skills,
  search_skills, get_skill. Published as a second bin (pm-claude-skills-mcp).
  Logs to stderr; reads bundled skills/ at startup. mcp/README.md documents
  client config.

Also: README hero "See it in action" demo placement (ready to swap in a GIF;
recording guide in web/docs-assets/README.md), Works-With table + exports +
install docs updated, CHANGELOG Unreleased. package.json files/bin updated.


Claude-Session: https://claude.ai/code/session_016JWn5jRD5tcEFKrubjQ6Px

Co-authored-by: Claude <noreply@anthropic.com>

exports/aider/pm-legal/contract-review/contract-review.md

@@ -0,0 +1,75 @@
+# Contract Review Skill
+
+This skill produces a structured contract review identifying key terms, unusual or high-risk clauses, and a plain English summary. Always include the disclaimer that this is not legal advice.
+
+## Required Inputs
+- **Contract text or description** (paste or describe)
+- **Reviewer role** (e.g. the party signing, their legal team, a business owner)
+- **Contract type** (e.g. SaaS agreement, employment contract, NDA, supplier contract)
+- **Key concerns** (optional — e.g. "focus on IP ownership and termination clauses")
+
+## Output Structure
+
+### 1. Contract Overview
+- **Type:** [Contract type]
+- **Parties:** [Party A and Party B]
+- **Effective date / duration:** [If stated]
+- **Governing law:** [Jurisdiction]
+- **Overall risk rating:** Green Low / Amber Medium / Red High
+
+### 2. Key Terms Summary
+
+| Term | Detail |
+|---|---|
+| Payment / fees | |
+| Term and renewal | |
+| Termination rights | |
+| Liability cap | |
+| IP ownership | |
+| Confidentiality | |
+| Dispute resolution | |
+
+### 3. Flagged Clauses
+
+For each flagged clause:
+
+**[Risk level] — [Clause name]**
+- **What it says:** [Plain English summary]
+- **Why it matters:** [Risk or implication]
+- **Suggested action:** [Negotiate / Accept / Seek legal advice / Query]
+
+### 4. Missing Clauses
+List any standard clauses absent but normally expected for this contract type.
+
+### 5. Plain English Summary
+3-5 sentences. What does this contract mean for the party signing it?
+
+### 6. Recommended Next Steps
+- [Action 1]
+- [Action 2]
+
+---
+
+WARNING: This review is for informational purposes only and does not constitute legal advice. Always consult a qualified solicitor or lawyer before signing any legally binding agreement.
+
+## Quality Checks
+
+- [ ] Overall risk rating is justified (not just "Medium" without reasons)
+- [ ] All flagged clauses have a specific recommended action (not just "read this")
+- [ ] Missing clauses section is completed for this contract type
+- [ ] Plain English summary can be understood by a non-lawyer
+- [ ] Disclaimer is included
+
+## Anti-Patterns
+
+- [ ] Do not provide legal advice or suggest the review substitutes for qualified legal counsel
+- [ ] Do not skip flagging unusual or one-sided clauses because they appear standard
+- [ ] Do not omit a plain-English summary — legal jargon alone is not useful output
+- [ ] Do not rate risk without explaining what specifically drives that rating
+- [ ] Do not ignore missing clauses — absence of key protections is itself a risk
+
+## Example Trigger Phrases
+- "Review this contract: [paste]"
+- "Flag the key risks in this agreement"
+- "Summarise this SaaS contract in plain English"
+- "What should I watch out for in this supplier agreement?"