feat(skills): update issue-lifecycle to use direct type execution

[stack72]

Summary

• Updates the issue-lifecycle skill to use direct type execution syntax (swamp model @swamp/issue-lifecycle method run <method> issue-<N> --input ...) across all 5 skill files
• Collapses the two-step triage flow (model create + method run start) into a single command
• Renumbers triage steps 1–5 → 1–4 and planning steps 6–8 → 5–7 to reflect the collapsed step

Test plan

• Verified direct type execution works for @swamp/issue-lifecycle with start method on issue-342
• Confirmed auto-definition created in .swamp/auto-definitions/
• All subsequent method runs (triage, etc.) work against the auto-created definition
• Test full lifecycle flow in a fresh session using updated skill instructions

🤖 Generated with Claude Code

[github-actions]

Code Review

Documentation-only PR updating all 5 issue-lifecycle skill files to use direct type execution syntax. Reviewed all changes for internal consistency.

Blocking Issues

None.

Suggestions

None — the changes are clean and well-structured:

• All 21 command references consistently updated to swamp model @swamp/issue-lifecycle method run <method> issue-<N> syntax
• The model create + method run start two-step correctly collapsed into a single method run start with --input issueNumber=<N>
• Triage steps renumbered 1–4, planning steps renumbered 5–7, all cross-references consistent
• The old SKILL.md said "Phase 2: Planning (steps 6–9)" but planning.md only had steps 6–8; the new "steps 5–7" correctly matches the actual 3 planning steps
• Worktree note preserved and repositioned logically after the new combined step