Add shared ProviderManager architecture for runtime provider/model switching
between TUI and Engine:
Core Architecture:
- Add SwitchProvider and SwitchModel messages to UserAction enum
- Create run_engine_loop_dynamic() with shared ProviderManager
- Add ClientSource enum to AgentManager (Fixed vs Dynamic)
- Implement get_client() that resolves provider at call time
TUI Integration:
- Add ProviderMode::Shared variant for shared manager
- Add with_shared_provider_manager() constructor
- Update switch_provider/set_current_model for shared mode
- Fix /model command to update shared ProviderManager (was only
updating local TUI state, not propagating to engine)
- Fix /provider command to use switch_provider()
Infrastructure:
- Wire main.rs to create shared ProviderManager for both TUI and engine
- Add HTTP status code validation to Ollama client
- Consolidate messages.rs and state.rs into agent-core
Both TUI and Engine now share the same ProviderManager via
Arc<Mutex<>>. Provider/model changes via [1]/[2]/[3] keys, model
picker, or /model command now properly propagate to the engine.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Add a new terminal UI crate (crates/app/ui) built with ratatui providing an
interactive chat interface with real-time LLM streaming and tool visualization.
Features:
- Chat panel with horizontal padding for improved readability
- Input box with cursor navigation and command history
- Status bar with session statistics and uniform background styling
- 7 theme presets: Tokyo Night (default), Dracula, Catppuccin, Nord,
Synthwave, Rose Pine, and Midnight Ocean
- Theme switching via /theme <name> and /themes commands
- Streaming LLM responses that accumulate into single messages
- Real-time tool call visualization with success/error states
- Session tracking (messages, tokens, tool calls, duration)
- REPL commands: /help, /status, /cost, /checkpoint, /rewind, /clear, /exit
Integration:
- CLI automatically launches TUI mode when running interactively (no prompt)
- Falls back to legacy text REPL with --no-tui flag
- Uses existing agent loop with streaming support
- Supports all existing tools (read, write, edit, glob, grep, bash)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
