feat: Initial commit - Task Reporter incident response system

Complete implementation of the production line incident response system (生產線異常即時反應系統) including:

Backend (FastAPI):
- User authentication with AD integration and session management
- Chat room management (create, list, update, members, roles)
- Real-time messaging via WebSocket (typing indicators, reactions)
- File storage with MinIO (upload, download, image preview)

Frontend (React + Vite):
- Authentication flow with token management
- Room list with filtering, search, and pagination
- Real-time chat interface with WebSocket
- File upload with drag-and-drop and image preview
- Member management and room settings
- Breadcrumb navigation
- 53 unit tests (Vitest)

Specifications:
- authentication: AD auth, sessions, JWT tokens
- chat-room: rooms, members, templates
- realtime-messaging: WebSocket, messages, reactions
- file-storage: MinIO integration, file management
- frontend-core: React SPA structure

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/modules/chat_room/schemas.py

@@ -0,0 +1,167 @@
+"""Pydantic schemas for chat room management
+
+Request and response models for API endpoints
+"""
+from pydantic import BaseModel, Field
+from typing import Optional, List
+from datetime import datetime
+from enum import Enum
+
+
+class IncidentType(str, Enum):
+    """Types of production incidents"""
+    EQUIPMENT_FAILURE = "equipment_failure"
+    MATERIAL_SHORTAGE = "material_shortage"
+    QUALITY_ISSUE = "quality_issue"
+    OTHER = "other"
+
+
+class SeverityLevel(str, Enum):
+    """Incident severity levels"""
+    LOW = "low"
+    MEDIUM = "medium"
+    HIGH = "high"
+    CRITICAL = "critical"
+
+
+class RoomStatus(str, Enum):
+    """Room lifecycle status"""
+    ACTIVE = "active"
+    RESOLVED = "resolved"
+    ARCHIVED = "archived"
+
+
+class MemberRole(str, Enum):
+    """Room member roles"""
+    OWNER = "owner"
+    EDITOR = "editor"
+    VIEWER = "viewer"
+
+
+# Request Schemas
+class CreateRoomRequest(BaseModel):
+    """Request to create a new incident room"""
+    title: str = Field(..., min_length=1, max_length=255, description="Room title")
+    incident_type: IncidentType = Field(..., description="Type of incident")
+    severity: SeverityLevel = Field(..., description="Severity level")
+    location: Optional[str] = Field(None, max_length=255, description="Incident location")
+    description: Optional[str] = Field(None, description="Detailed description")
+    template: Optional[str] = Field(None, description="Template name to use")
+
+
+class UpdateRoomRequest(BaseModel):
+    """Request to update room metadata"""
+    title: Optional[str] = Field(None, min_length=1, max_length=255)
+    severity: Optional[SeverityLevel] = None
+    status: Optional[RoomStatus] = None
+    location: Optional[str] = Field(None, max_length=255)
+    description: Optional[str] = None
+    resolution_notes: Optional[str] = None
+
+
+class AddMemberRequest(BaseModel):
+    """Request to add a member to a room"""
+    user_id: str = Field(..., description="User email or ID to add")
+    role: MemberRole = Field(..., description="Role to assign")
+
+
+class UpdateMemberRoleRequest(BaseModel):
+    """Request to update a member's role"""
+    role: MemberRole = Field(..., description="New role")
+
+
+class TransferOwnershipRequest(BaseModel):
+    """Request to transfer room ownership"""
+    new_owner_id: str = Field(..., description="User ID of new owner")
+
+
+class RoomFilterParams(BaseModel):
+    """Query parameters for filtering rooms"""
+    status: Optional[RoomStatus] = None
+    incident_type: Optional[IncidentType] = None
+    severity: Optional[SeverityLevel] = None
+    created_after: Optional[datetime] = None
+    created_before: Optional[datetime] = None
+    search: Optional[str] = Field(None, description="Search in title and description")
+    all: Optional[bool] = Field(False, description="Admin: show all rooms")
+    limit: int = Field(20, ge=1, le=100)
+    offset: int = Field(0, ge=0)
+
+
+# Response Schemas
+class MemberResponse(BaseModel):
+    """Room member information"""
+    user_id: str
+    role: MemberRole
+    added_by: str
+    added_at: datetime
+    removed_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True
+
+
+class RoomResponse(BaseModel):
+    """Complete room information"""
+    room_id: str
+    title: str
+    incident_type: IncidentType
+    severity: SeverityLevel
+    status: RoomStatus
+    location: Optional[str] = None
+    description: Optional[str] = None
+    resolution_notes: Optional[str] = None
+    created_by: str
+    created_at: datetime
+    resolved_at: Optional[datetime] = None
+    archived_at: Optional[datetime] = None
+    last_activity_at: datetime
+    last_updated_at: datetime
+    ownership_transferred_at: Optional[datetime] = None
+    ownership_transferred_by: Optional[str] = None
+    member_count: int
+    members: Optional[List[MemberResponse]] = None
+    current_user_role: Optional[MemberRole] = None
+    is_admin_view: bool = False
+
+    class Config:
+        from_attributes = True
+
+
+class RoomListResponse(BaseModel):
+    """Paginated list of rooms"""
+    rooms: List[RoomResponse]
+    total: int
+    limit: int
+    offset: int
+
+
+class TemplateResponse(BaseModel):
+    """Room template information"""
+    template_id: int
+    name: str
+    description: Optional[str] = None
+    incident_type: IncidentType
+    default_severity: SeverityLevel
+    default_members: Optional[List[dict]] = None
+    metadata_fields: Optional[dict] = None
+
+    class Config:
+        from_attributes = True
+
+
+class PermissionResponse(BaseModel):
+    """User permissions in a room"""
+    role: Optional[MemberRole] = None
+    is_admin: bool = False
+    can_read: bool = False
+    can_write: bool = False
+    can_manage_members: bool = False
+    can_transfer_ownership: bool = False
+    can_update_status: bool = False
+    can_delete: bool = False
+
+
+class SuccessResponse(BaseModel):
+    """Generic success response"""
+    message: str