8a0c875d75
- Separate model auto-routing from Plan/Agent/YOLO TUI modes across all READMEs and docs/MODES.md - Introduce Fin as the fast thinking-off deepseek-v4-flash seam for routing, summaries, RLM child calls, and coordination work - Document /goal as current session tracking (not a TUI mode), with note that a future Goal work surface should stay distinct from --model auto - Extend deprecation shim timeline from 'one release cycle' to through v0.8.x in REBRAND.md and npm READMEs - Fix selection_to_text test to expect inline thinking preview (short completed thinking now renders inline without Ctrl+O affordance)