feat: auth middleware, brain data layer, Valkey queue (P1-002/003/004) (#71)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/brain/src/tasks.ts

@@ -0,0 +1,50 @@
+import { eq, type Db, tasks } from '@mosaic/db';
+
+export type Task = typeof tasks.$inferSelect;
+export type NewTask = typeof tasks.$inferInsert;
+
+export function createTasksRepo(db: Db) {
+  return {
+    async findAll(): Promise<Task[]> {
+      return db.select().from(tasks);
+    },
+
+    async findById(id: string): Promise<Task | undefined> {
+      const rows = await db.select().from(tasks).where(eq(tasks.id, id));
+      return rows[0];
+    },
+
+    async findByProject(projectId: string): Promise<Task[]> {
+      return db.select().from(tasks).where(eq(tasks.projectId, projectId));
+    },
+
+    async findByMission(missionId: string): Promise<Task[]> {
+      return db.select().from(tasks).where(eq(tasks.missionId, missionId));
+    },
+
+    async findByStatus(status: Task['status']): Promise<Task[]> {
+      return db.select().from(tasks).where(eq(tasks.status, status));
+    },
+
+    async create(data: NewTask): Promise<Task> {
+      const rows = await db.insert(tasks).values(data).returning();
+      return rows[0]!;
+    },
+
+    async update(id: string, data: Partial<NewTask>): Promise<Task | undefined> {
+      const rows = await db
+        .update(tasks)
+        .set({ ...data, updatedAt: new Date() })
+        .where(eq(tasks.id, id))
+        .returning();
+      return rows[0];
+    },
+
+    async remove(id: string): Promise<boolean> {
+      const rows = await db.delete(tasks).where(eq(tasks.id, id)).returning();
+      return rows.length > 0;
+    },
+  };
+}
+
+export type TasksRepo = ReturnType<typeof createTasksRepo>;