Initial CodeCraft: web-based coding harness for AI models

Rust backend (axum/tokio): agent loop with streaming, tools (fs, bash,
web_fetch, todo, ask_user, subagents, skills, craft snapshots/compare),
permissions with modes and rules, Anthropic + OpenAI-compatible providers,
MCP client (stdio/HTTP, elicitation), SQLite sessions, usage statistics,
compaction, commented TOML config editable via toml_edit.

React PWA: chat with live streaming, permission/question cards, modes
(build/plan/craft), settings for providers/models/prices/MCP/permissions,
raw config editor, statistics dashboard, i18n (en/de). Docker setup.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/types.ts

@@ -0,0 +1,147 @@
+// Mirrors server/src/types.rs
+
+export interface ImageData {
+  media_type: string;
+  data: string;
+}
+
+export type Part =
+  | { type: "text"; text: string }
+  | { type: "image"; image: ImageData }
+  | { type: "reasoning"; text: string; signature?: string }
+  | { type: "tool_call"; id: string; name: string; input: any }
+  | {
+      type: "tool_result";
+      call_id: string;
+      name: string;
+      content: string;
+      images?: ImageData[];
+      is_error: boolean;
+      meta?: any;
+    }
+  | { type: "summary"; text: string };
+
+export interface Usage {
+  input_tokens: number;
+  output_tokens: number;
+  cache_read_tokens: number;
+  cache_write_tokens: number;
+}
+
+export interface Message {
+  id: string;
+  role: "user" | "assistant";
+  parts: Part[];
+  model?: string;
+  usage?: Usage;
+  created_at: number;
+}
+
+export interface Todo {
+  content: string;
+  status: "pending" | "in_progress" | "completed";
+}
+
+export interface Session {
+  id: string;
+  title: string;
+  cwd: string;
+  model: string;
+  agent: string;
+  permission_mode: "default" | "accept_edits" | "bypass";
+  parent_id?: string;
+  created_at: number;
+  updated_at: number;
+  todos: Todo[] | null;
+  last_usage?: Usage | null;
+  busy?: boolean;
+}
+
+export interface QuestionOption {
+  label: string;
+  description?: string;
+}
+
+export interface Question {
+  question: string;
+  header?: string;
+  options: QuestionOption[];
+  multi_select?: boolean;
+}
+
+export interface PermissionRequest {
+  type: "permission_request";
+  id: string;
+  session_id: string;
+  root_session_id?: string;
+  tool: string;
+  title: string;
+  input: any;
+  diff?: string;
+}
+
+export interface QuestionRequest {
+  type: "question_request";
+  id: string;
+  session_id: string;
+  root_session_id?: string;
+  source: string;
+  questions: Question[];
+}
+
+export type ServerEvent =
+  | { type: "session_updated"; session: Session }
+  | { type: "session_deleted"; session_id: string }
+  | { type: "session_status"; session_id: string; busy: boolean }
+  | { type: "message_added"; session_id: string; message: Message }
+  | { type: "text_delta"; session_id: string; message_id: string; text: string }
+  | { type: "reasoning_delta"; session_id: string; message_id: string; text: string }
+  | { type: "tool_started"; session_id: string; message_id: string; call_id: string; name: string; input: any }
+  | { type: "tool_progress"; session_id: string; call_id: string; output: string }
+  | PermissionRequest
+  | { type: "permission_resolved"; id: string; session_id: string }
+  | QuestionRequest
+  | { type: "question_resolved"; id: string; session_id: string }
+  | { type: "error"; session_id: string; message: string }
+  | { type: "mcp_status"; servers: Record<string, McpServerStatus> }
+  | { type: "resync" };
+
+export interface McpServerStatus {
+  status: { state: "disabled" | "connecting" | "connected" | "failed"; tools?: number; error?: string };
+  tools: { name: string; description: string }[];
+}
+
+export interface ModelInfo {
+  id: string;
+  name: string;
+  context?: number;
+  reasoning: boolean;
+  vision: boolean;
+}
+
+export interface ProviderModels {
+  provider: string;
+  models: ModelInfo[];
+}
+
+export interface AgentInfo {
+  name: string;
+  description: string;
+  mode: "primary" | "subagent";
+  read_only: boolean;
+}
+
+export interface Aggregate {
+  requests: number;
+  input_tokens: number;
+  output_tokens: number;
+  cache_read_tokens: number;
+  cache_write_tokens: number;
+  cost: number;
+  errors: number;
+  avg_ttft_ms: number;
+  output_tps: number;
+  prefill_tps: number;
+  cache_hit_rate: number;
+  duration_ms: number;
+}