matevip 7b12c5f0c9 feat(llm): provider health tracker + UI editor for failover priority ... UI — Failover priority editor - ProviderConfigRequest + ProviderInfoDTO carry fallbackPriority - ModelProviderService.updateProviderConfig persists it (null = unchanged); toProviderInfo exposes the current value to the UI (defaults to 0) - ProviderConfigModal advanced panel exposes a number input with hint - ProviderCard shows a "Fallback #N" badge for chain members so the priority order is visible at a glance without opening the modal - 5 new i18n keys (zh + en) — verified to resolve at runtime via i18n.global.t Backend — Per-provider health tracker - ProviderHealthTracker: ConcurrentHashMap-backed counters; N consecutive failures (default 3) push the provider into a cooldown window (default 5 min) during which the chain walker skips it. Success resets both counter and cooldown atomically. Lazy expiry on lookup so dead entries do not accumulate. - ProviderHealthProperties exposed under mateclaw.llm.failover.health.* with sane production defaults - New FallbackEntry record (providerId + ChatModel) replaces raw List<ChatModel> in the chain so the walker can correlate cooldown state to entries; AgentGraphBuilder.buildFallbackChain returns the new type - NodeStreamingChatHelper takes the tracker through a new 4-arg constructor and consults it before each fallback call; records success/failure on each chain attempt. Legacy 2/3-arg constructors preserved as @Deprecated wrappers (synthetic providerId means no health tracking on the legacy path — that path is opt-out anyway) Tests - ProviderHealthTrackerTest (9 tests): below/at threshold, success reset, cooldown expiry (via reflection on the min-clamp setter), disabled-tracker no-op, null-providerId safety, per-provider isolation, snapshot output - NodeStreamingChatHelperFallbackChainTest updated to FallbackEntry field type — verifies providerId + ChatModel survive the chain - 168 tests pass (was 159 + 9 new) Verification - mvn test green; vue-tsc clean; live UI confirms i18n resolution		2026-04-19 16:57:03 +08:00
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vip/mate	feat(llm): provider health tracker + UI editor for failover priority	2026-04-19 16:57:03 +08:00