Terminal-based AI coding agent with interactive TUI for autonomous code generation.

Features:
  - Interactive TUI with React/Ink
  - Autonomous agent with tool calls (bash, read, write, edit, glob, grep)
  - Permission system with pattern-based rules
  - Session management with auto-compaction
  - Dual providers: GitHub Copilot and Ollama
  - MCP server integration
  - Todo panel and theme system
  - Streaming responses
  - GitHub-compatible project context

src/constants/handlers.ts

@@ -0,0 +1,45 @@
+/**
+ * Constants for command handlers
+ */
+
+import type { ConfigKey, ConfigAction } from "@/types/handlers";
+import type { Provider } from "@/types/index";
+
+export const VALID_CONFIG_KEYS: readonly ConfigKey[] = [
+  "provider",
+  "model",
+  "maxIterations",
+  "timeout",
+] as const;
+
+export const VALID_PROVIDERS: readonly Provider[] = [
+  "copilot",
+  "ollama",
+] as const;
+
+export const VALID_CONFIG_ACTIONS: readonly ConfigAction[] = [
+  "show",
+  "path",
+  "set",
+] as const;
+
+export const CONFIG_VALIDATION = {
+  MIN_TIMEOUT_MS: 1000,
+  MIN_ITERATIONS: 1,
+} as const;
+
+export const INTENT_KEYWORDS = {
+  fix: ["fix", "bug"],
+  test: ["test", "spec"],
+  refactor: ["refactor", "improve"],
+  code: ["add", "implement"],
+  document: ["document", "comment"],
+} as const;
+
+export const CLASSIFICATION_CONFIDENCE = {
+  HIGH: 0.9,
+  MEDIUM: 0.85,
+  DEFAULT: 0.8,
+  LOW: 0.75,
+  THRESHOLD: 0.7,
+} as const;