feat(basecamp-project): add launch workflow skill

skills/basecamp-project/references/review-checklists.md

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+# Project Launch Review Checklist
+
+Use this reference to review a Basecamp project launch plan before execution. Classify findings by severity and return the reviewer output contract at the end.
+
+## Severity Levels
+
+### Blocking
+A blocking issue means the launch should not proceed until the issue is fixed or an explicit override is recorded. Blocking issues create a high risk of launching the wrong project, notifying the wrong people, or starting without authority.
+
+Blocking examples:
+- No goal is stated.
+- No DRI is named.
+- No success criteria are defined.
+- Timeline is impossible.
+- External visibility is unknown.
+- No Basecamp approval is documented.
+- Missing `Vorlagen` with no fallback.
+- Notification behavior is undisclosed.
+- Existing project was not inspected before planning.
+- No cautious execution plan is provided.
+
+### Important
+An important concern means the launch may proceed only with awareness and mitigation. Important concerns can cause confusion, rework, stakeholder friction, or schedule pressure.
+
+Important examples:
+- Timeline is aggressive.
+- Owner appears overloaded.
+- Too many placeholders remain.
+- Dates are speculative.
+- Too many check-ins are planned.
+- Stakeholder approval is unclear.
+- Kickoff plan is over-optimistic.
+- Project Brief needed but missing.
+
+### Minor
+A minor improvement makes the launch clearer or easier to execute but does not materially change readiness.
+
+Minor examples:
+- Wording improvements.
+- Clearer milestones.
+- Cleaner task descriptions.
+
+## Review Guidance
+
+- Prefer concrete evidence from the project plan over assumptions.
+- Escalate uncertainty about authority, visibility, or notifications to Blocking.
+- Escalate repeated Important concerns to Blocking when they make execution unsafe.
+- Keep recommendations practical and tied to launch readiness.
+
+## Project Launch Review
+
+### Status
+Approved | Approved with concerns | Blocked
+
+### Blocking Issues
+- Issue:
+  Why it matters:
+  Required fix or override:
+
+### Important Concerns
+- Concern:
+  Possible consequence:
+  Recommended mitigation:
+
+### Minor Improvements
+- Improvement:
+  Suggested edit:
+
+### Reviewer Recommendation
+Proceed | Proceed after acknowledgement | Do not proceed yet