Add AI agent capabilities and integrate with Anthropic and LNbits

Integrate Anthropic AI for agent capabilities, introduce database schemas for jobs and invoices, and set up LNbits for payment processing.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 418bf6f8-212b-4bb0-a7a5-8231a061da4e
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: cce28acc-aeac-46ff-80ec-af4ade39e30f
Replit-Helium-Checkpoint-Created: true

lib/db/src/schema/conversations.ts

@@ -0,0 +1,17 @@
+import { pgTable, serial, text, timestamp } from "drizzle-orm/pg-core";
+import { createInsertSchema } from "drizzle-zod";
+import { z } from "zod/v4";
+
+export const conversations = pgTable("conversations", {
+  id: serial("id").primaryKey(),
+  title: text("title").notNull(),
+  createdAt: timestamp("created_at", { withTimezone: true }).defaultNow().notNull(),
+});
+
+export const insertConversationSchema = createInsertSchema(conversations).omit({
+  id: true,
+  createdAt: true,
+});
+
+export type Conversation = typeof conversations.$inferSelect;
+export type InsertConversation = z.infer<typeof insertConversationSchema>;