Summary

• add .datetime() and .datetime(template) parsing and evaluation
• add session-time-zone-aware datetime comparisons for PostgreSQL _tz behavior
• handle arbitrary-precision numeric input for .double() overflow checks
• align lax starts with sequence semantics
• update GitHub Pages actions to supported versions
• increase PostgreSQL jsonb_jsonpath coverage from 325/430 to 421/430

Testing

• cargo test --all-features --no-fail-fast
• cargo clippy --all-targets --all-features -- -D warnings
• cargo fmt --all -- --check
• wasm-pack build --target web
• workflow YAML parse and git diff --check

Remaining skipped PostgreSQL cases

Nine cases remain skipped: silent-mode partial-result behavior (1079, 1085), floating-point remainder precision (1300), PostgreSQL-internal keyvalue() IDs (1421, 1431), regex dialect differences (1627, 1650), datetime values beyond chrono range (2210), and strict query-first silent behavior (2272).