chore: bump version to 1.9.1

Merge pull request #76 from harrymunro/fix/nelson-skill-improvements

fix: address PR 76 review feedback

fix: improve nelson skill robustness and conflict scanning

chore: bump version to v1.9.0

Merge pull request #72 from harrymunro/enhancement/issue-68-admiral-synthesis

Merge pull request #74 from harrymunro/feature/issue-58-conflict-radar

fix: tighten admiral synthesis boundary per review feedback

fix: address review feedback on admiral synthesis boundary

Enhancement: Allow admiral synthesis when all ships have reported (fixes #68)

fix: address remaining PR #74 review feedback

fix: address review feedback — remove default hook, fix matching, fix git parsing

Enhancement: Add conflict radar runtime hook (Issue #58 Feature 4)

Merge pull request #75 from harrymunro/enhancement/issue-38-concurrent-sessions

Merge pull request #73 from harrymunro/feature/issue-58-conflict-scan