feat: add Homarr assistant

packages/db/migrations/postgresql/0010_workable_shard.sql

@@ -0,0 +1,33 @@
+CREATE TABLE "assistant_configuration" (
+	"id" varchar(64) PRIMARY KEY DEFAULT 'default' NOT NULL,
+	"enabled" boolean DEFAULT false NOT NULL,
+	"provider" varchar(32) DEFAULT 'openrouter' NOT NULL,
+	"base_url" varchar(2048) DEFAULT 'https://openrouter.ai/api/v1' NOT NULL,
+	"model_discovery_path" varchar(512) DEFAULT '/models',
+	"encrypted_api_key" text,
+	"encrypted_headers" text,
+	"model_id" varchar(256),
+	"updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "assistant_message" (
+	"id" varchar(64) PRIMARY KEY NOT NULL,
+	"thread_id" varchar(64) NOT NULL,
+	"parent_id" varchar(64),
+	"format" varchar(64) DEFAULT 'ai-sdk/v6' NOT NULL,
+	"content" text DEFAULT '{"json": {}}' NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "assistant_thread" (
+	"id" varchar(64) PRIMARY KEY NOT NULL,
+	"user_id" varchar(64) NOT NULL,
+	"title" varchar(256),
+	"model_id" varchar(256),
+	"status" varchar(16) DEFAULT 'regular' NOT NULL,
+	"created_at" timestamp DEFAULT now() NOT NULL,
+	"updated_at" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "assistant_message" ADD CONSTRAINT "assistant_message_thread_id_assistant_thread_id_fk" FOREIGN KEY ("thread_id") REFERENCES "public"."assistant_thread"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "assistant_thread" ADD CONSTRAINT "assistant_thread_user_id_user_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."user"("id") ON DELETE cascade ON UPDATE no action;