Implement Week 6 Origin Federation with Oracle fixes

New files:
- musicfs-core/src/config.rs: Config, OriginConfig, HealthConfig
- musicfs-origins/src/registry.rs: OriginRegistry with watch cleanup
- musicfs-origins/src/router.rs: Priority router with (priority, latency) ordering
- musicfs-origins/src/health.rs: HealthMonitor with per-origin-type thresholds
- musicfs-origins/src/failover.rs: FailoverExecutor with NFR-7.3 backoff

Oracle fixes applied:
- Per-OriginType threshold: Local=1, Remote=3 (check_one uses threshold_for)
- AllOriginsUnhealthy event: Added to events.rs, emitted in select_with_fallback
- Unified OriginType: Removed duplicate from traits.rs, use musicfs_core::OriginType
- Watch handle cleanup: Tracked and dropped on unregister()
- Retry delays: 100ms, 500ms, 2000ms (NFR-7.3 compliant)

Tests: 91 pass (+20 new)

This commit is contained in:

Alexander

2026-05-12 20:15:56 +02:00

parent 32c96701c8

commit d5ef68c9c9

15 changed files with 1321 additions and 14 deletions

									
										musicfs/Cargo.toml
									
		+4
		
												View File
												
				@@ -23,6 +23,10 @@ anyhow = "1"

				serde = { version = "1", features = ["derive"] }

				serde_json = "1"

				rmp-serde = "1"

				toml = "0.8"

				# Concurrent collections

				dashmap = "5"

				# Logging

				tracing = "0.1"