STO-06: the IndexedDB codec migration commit chain runs entirely inside
IndexedDB callbacks, so up to maxRows records could keep executing past the
caller's cooperative deadline. The monotonic budget is now re-checked before
each record's first write; a started record still completes atomically, the
checkpoint advances only to the last safe key, and a clock failure aborts the
transaction rather than committing an unbounded batch.
STO-07: every OPFS worker request and response now carries
OPFS_WORKER_PROTOCOL_VERSION = 2, responses echo their request kind, and the
client validates the envelope and failure shape strictly while remembering the
expected kind per pending request. A page/worker release mismatch or a reply for
a different operation closes as UNSUPPORTED instead of being decoded as a value
of the wrong shape. UNSUPPORTED is used deliberately: the closed browser-data
taxonomy has no INCOMPATIBLE code and none was invented.
SW-10 and the OPFS/Web Push V2 wire rollouts remain deferred: they are
expand/dual-read/drain/contract deployments across releases rather than a single
in-repo change. The ledger records them as DEFERRED_TO_MIGRATION.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
