split core model definitions

internal/model/storage_assistant.go

@@ -0,0 +1,36 @@
+package model
+
+// StorageConfig holds the connection settings for one external storage
+// backend (Alist / S3 / WebDAV). Type column makes the row poly-typed
+// — Config is a JSON blob whose shape is determined by Type.
+//
+//	alist  → {server, token}
+//	s3     → {endpoint, region, bucket, access_key, secret_key, force_path_style}
+//	webdav → {url, username, password}
+type StorageConfig struct {
+	Base
+	Type      string `gorm:"uniqueIndex;size:16;not null" json:"type"`
+	Config    string `gorm:"type:text;not null" json:"-"` // ciphertext
+	Enabled   bool   `gorm:"default:true" json:"enabled"`
+	LastError string `gorm:"size:512" json:"last_error,omitempty"`
+}
+
+// AssistantSession groups a multi-turn chat with the AI assistant.
+type AssistantSession struct {
+	Base
+	UserID string `gorm:"index;size:36;not null" json:"user_id"`
+	Title  string `gorm:"size:255" json:"title,omitempty"`
+}
+
+// AssistantMessage is one entry in an AssistantSession transcript.
+//
+// Role is "user" | "assistant" | "system".  The optional OperationID
+// links a message to an action the assistant proposed (so the UI can
+// offer Undo).
+type AssistantMessage struct {
+	Base
+	SessionID   string `gorm:"index;size:36;not null" json:"session_id"`
+	Role        string `gorm:"size:16;not null" json:"role"`
+	Content     string `gorm:"type:text;not null" json:"content"`
+	OperationID string `gorm:"size:36" json:"operation_id,omitempty"`
+}