release: v0.7.0

chore: bump @altimateai/altimate-core to 0.3.1 for v0.6.1

Upstream patch release of the native SQL type-checker used by
`altimate_core_validate` and the cross-dialect data-parity engine.
Rolling into the v0.6.1 release so users pick it up with the BQ finops fix.

Verified:
- `bun run pre-release`: 4/4 green (externals resolved, build OK, binary boots)
- `bun turbo typecheck`: clean
- `bun test test/altimate/ test/skill/`: 3206 pass, 491 skipped (env-gated), 0 fail

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

release: v0.6.0

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

release: v0.5.21

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

fix: add marker guards for provider log line to pass Marker Guard CI

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

release: v0.5.19

release: v0.5.18

release: v0.5.17

release: v0.5.16

release: v0.5.15

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>