v0.1.12

Changes

• Switch publish workflow to OIDC trusted publisher (no NPM_TOKEN needed)
• Trigger on tag push (v*) instead of GitHub releases
• Vocabulary alignment: "templates" → "briefings" throughout
• Update description: "pre-reasoned market briefings"
• Fix repository URL to canonical npm format

Full Changelog: v0.1.10...v0.1.12