v0.13.0

What's Changed

• feat(examples): add three lead-use-case demos by @hipvlady in #148
• chore(glama): add glama.json + Dockerfile for MCP directory scoring by @hipvlady in #149
• feat(examples): CCSStore read-side demo — the read/write split, runnable by @hipvlady in #150
• chore(mcp-registry): sync server.json version to 0.12.0 by @hipvlady in #151
• feat(byo-substrate): coherence over the store you already run — Postgres row + S3 object bindings by @hipvlady in #152
• feat: composite subagent identity — attribution, sibling-collision detection, scoped release by @hipvlady in #153
• chore(ci): publish to MCP Registry via GitHub OIDC by @hipvlady in #154
• fix(mcp-registry): correct namespace casing to io.github.Cohexa-ai by @hipvlady in #155
• chore(release): v0.13.0 by @hipvlady in #156

Full Changelog: v0.12.0...v0.13.0