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Fixes #5715.
Claude Code 2.1.263 currently fails native-client detection because its User-Agent version must exactly match the 2.1.258 baseline. This change accepts patch releases in the configured major/minor line at or above the measured baseline, so newer 2.1.x clients preserve their native request identity.
Older versions and unmeasured major/minor lines still fall back to cloaking. Device-profile learning remains pinned to the exact User-Agent, SDK package, and runtime baseline, and the existing strong-signal plus native-entrypoint checks remain unchanged.
Validation:
go test -count=1 -run 'TestDetectClaudeCodeRequest|TestResolveClaudeDeviceProfileLocal|TestApplyClaudeHeaders_DisableDeviceProfileStabilization|TestApplyClaudeHeaders_LegacyModePreservesConfiguredUserAgentOverrideForClaudeClients|TestClaudeExecutor_ConfirmedNewerPatchClaudeCodeRequestPreservesInteractiveIdentity' ./internal/runtime/executor/helps ./internal/runtime/executorgo vet ./internal/runtime/executor/helps ./internal/runtime/executorgo build -o test-output ./cmd/servergo test -count=1 ./...passes outsideinternal/runtime/executor; that package has a pre-existingTestOpenAICompatExecutorToolResultContentByInputModalitiesfailure reproduced on a cleanorigin/dev. An unrelated XAI timing assertion also flaked once and passed on an isolated rerun.Assistance disclosure: implementation and verification were AI-assisted and reviewed against the repository contribution rules.