9b4e9ee311
Introduces ExecutionMode (parallel/sequential) and OverlapPolicy (skip/queue) types and constants in domain/config.go, wires defaults (parallel/skip) into loadOrCreateConfig and the normalization pass, and adds validation in validateConfig. Adds Pending bool to JobRuntime as the flag P3.3 will use to re-run a queued overlap. Marks P3.1 done. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>