v2.5.0: AI BGP multi-provider routing with automatic failover

- New AI BGP pool manager (create/edit/delete pools)
- Each pool has ordered routes from any configured endpoint
- Failover: tries primary, falls back to next route on error
- Pools appear in endpoint dropdown with shuffle icon
- Pool editor with route add/remove/reorder
- Fixed TOML breakage from multi-line paste
- Added OpenAdapter preset with 0G models

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## v2.5.0 (2026-05-20)
+
+- **AI BGP — Multi-provider routing with automatic failover**
+  - New "AI BGP" button in main window → pool manager
+  - Create BGP pools with ordered routes from any configured endpoint
+  - Each route has its own endpoint URL, API key, model, and priority
+  - **Failover strategy**: tries primary route, automatically falls back to next on error/timeout
+  - BGP pools appear in endpoint dropdown with 🔀 icon
+  - Pool editor: add/remove/reorder routes, pick endpoint + model per route
+  - Up/down buttons for priority reordering
+  - Proxy logs `[bgp] trying route 'Name'` and `[bgp] route 'Name' FAILED` on fallback
+  - If all routes fail: returns 502 with detailed error per route
+- Fixed TOML config breakage from multi-line paste in API key field (`_toml_safe()`)
+
 ## v2.4.0 (2026-05-20)
 
 - **Added OpenAdapter provider preset**