[relsunkaev]

Preserve table metadata through callback-based native pipes. Three files; local gates pass. Merge before preparing the next patch release.

Why

Problem: applying an option after generic transforms can erase a table's field and constraint types.

• The table already carries authoritative metadata.
• Matching its entire recursive type to rediscover that metadata can produce widened or impossible results.

Fixes

Metadata retention:

• Read the existing name, fields, primary keys, schema, and conflict arbiters directly.
• Keep runtime behavior, public signatures, and Effect's piping implementation unchanged.

Regression coverage:

• Exercise callback-based method and standalone pipes with casing and identity.
• Check exact row and update types, ten transforms, and changing the final result type.
• Reject invalid field values, primary-key updates, and non-unique conflict targets.
• Construct a real query from the resulting table.

Mechanical changes:

• Issue-tracker records accompany the source fix and tests.

Risks & Testing Needed

Scope: this fixes metadata extraction, not every inference problem.
→ Unannotated option-selector shorthand mixed with ordinary transforms remains tracked as effect-qb-ciq.

Requirement: fields and constraint facts must remain accurate after composition.
→ The new assertions fail against the merged PR #36 baseline and pass with this change.

Not tested:

• No new claim that implicit selector inference is repaired.
• No visual or fresh-reader usability claim.

Build status: local types, 741 tests / 80 snapshots, build, and packed Node consumer smoke tests pass.

Test Plan

bun run test:types
bun test --coverage
bun run build
bun run test:pack

CI must also pass the existing Node 22/24/26 package and database-integration jobs before merge.

Rollback

git revert -m 1 <merge-commit>

Restores the preceding typing implementation and removes these regression assertions. No data migration is involved.