v0.2.8: mcp-ts-core ^0.10.9 maintenance

mcp-ts-core ^0.10.9 maintenance

Framework adoption and dependency refresh. No server tool changes.

Changed:

• Adopt @cyanheads/mcp-ts-core ^0.10.9 — DuckdbProvider.describe({ tableName }) ambiguous-column fix and the canvas SQL gate classifying SELECT-shaped prepare failures as invalid_sql (both reachable via eia_dataframe_describe / eia_dataframe_query), plus the ctx.content image/audio collector
• Add the check-dependency-specifiers devcheck step (new framework script) — rejects floating specifiers in package.json + bun.lock workspaces
• Enable plugin-manifest validation via devcheck.config.json packaging.pluginManifests; fill the empty .codex-plugin longDescription
• Re-sync 14 framework skills and 5 scripts

Dependency bumps:

• @cyanheads/mcp-ts-core ^0.10.6 → ^0.10.9
• @duckdb/node-api ^1.5.3-r.3 → ^1.5.4-r.1
• @types/node ^25.9.3 → ^26.0.0
• vitest ^4.1.8 → ^4.1.9

165 tests pass; bun run devcheck clean.