~anthropic/claude-sonnet-latest → A (6:4)

Commit A deletes ~1800 lines of an unreliable, over-engineered keystroke-transition-graph parser and replaces it with a small, testable, correct URL-parsing function plus a simpler paste-and-go UI, genuinely simplifying the codebase and fixing a real reliability problem (also removing an entire flaky browser-race test). Commit B is a legitimate consolidation of POST /post, /post/check, /post/redact into a single /ui RPC endpoint with shared session resolution, which is solid but more mechanical refactor/plumbing with less net risk reduction and more residual duplication (e.g., duplicated helper functions) than A's decisive cleanup.