Add bounded memory and IndexedDB storage#2
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The browser coordinator previously hid storage behavior behind identity persistence and used a SQLite snapshot wrapper. This makes storage a first-class runtime option with volatile memory and IndexedDB modes, bounds the in-memory message buffer, and trims IndexedDB snapshots before writes so message history is evicted before storage pressure becomes a hard failure. Constraint: Browser coordinator storage remains snapshot-backed around the existing domain-shaped storage contract. Rejected: Keep SQLite/KVVFS as the persistent backend | IndexedDB is the requested browser storage target and avoids carrying the unused wasm dependency. Confidence: high Scope-risk: moderate Directive: Treat message buffer limits as message-history retention, not key-package or pending-request quotas. Tested: pnpm lint; pnpm build; pnpm test; pnpm test:e2e; targeted vitest for storage/config/transport. Not-tested: Real browser quota-exceeded behavior under multi-megabyte live chat history.
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Agent misbehaved, wasn't supposed to delete sqlite-wasm, was supposed to add two new methods and leave existing method where it was. Will fix. |
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