refactor(evidence): remove session ledger quotas

docs/user-visible-errors.csv

@@ -17,7 +17,6 @@ harm_rank,location,trigger,current_copy,user_risk,proposed_replacement,implement
 16,src/domain/errors.ts:AnalysisTimeoutError,Analysis deadline expires,"Analysis operation timed out after {timeoutMs}ms: {operation}",Exposes internal deadline and operation; weak recovery,"Analysis took too long. Try a smaller request, then run `rea doctor` if it continues.",implemented,focused assertions passed; full `npm run check` passed
 17,src/domain/errors.ts:HopperTimeoutError,Provider deadline expires,"Hopper did not respond within {timeoutMs}ms",Exposes provider and internal deadline,"Analysis took too long. Try a smaller request, then run `rea doctor` if it continues.",implemented,focused assertions passed; full `npm run check` passed
 18,src/domain/errors.ts:ProviderSelectionError,Deep-provider selection fails,"Analysis provider selection failed ({reason}) for {requestedProviderId}; candidates: {candidateIds}",Retains non-secret local selection context that needs a safe structured projection,Reason-specific guidance with stable candidate IDs and actionable rejection diagnostics,implemented,focused registry/CLI/MCP assertions passed; full `npm run check` passed
-19,src/domain/errors.ts:EvidenceLimitError,Evidence ledger limit reached,"Evidence ledger {limit} limit exceeded ({maximum})",Exposes internal storage model,"Evidence is too large for this session. Reduce the evidence set and try again.",implemented,focused assertions passed; full `npm run check` passed
 20,src/domain/errors.ts:AnalysisInputError,Parsed analysis input invalid,"Invalid analysis input for {operation}",Exposes operation identifier and lacks correction,"Analysis input is invalid. Check the arguments and try again.",implemented,focused assertions passed; full `npm run check` passed
 21,src/domain/errors.ts:AnalysisCancelledError,Caller cancels analysis,"Analysis operation was cancelled: {operation}",Exposes operation identifier,"Analysis was cancelled. Start it again when ready.",implemented,focused assertions passed; full `npm run check` passed
 22,src/domain/errors.ts:HopperCancelledError,Caller cancels provider request,Hopper operation was cancelled,Exposes provider name,"Analysis was cancelled. Start it again when ready.",implemented,focused assertions passed; full `npm run check` passed