feat: auth foundation, similar tools, costs, redundancy, anonymous voting

lib/db/src/schema/tool-costs.ts

@@ -0,0 +1,15 @@
+import { pgTable, text, serial, integer, numeric, timestamp } from "drizzle-orm/pg-core";
+import { toolsTable } from "./tools";
+import { usersTable } from "./users";
+
+export const toolCostsTable = pgTable("tool_costs", {
+  id: serial("id").primaryKey(),
+  toolId: integer("tool_id").notNull().references(() => toolsTable.id, { onDelete: "cascade" }),
+  licenseType: text("license_type", { enum: ["free", "subscription", "one_time", "usage_based"] }).notNull().default("free"),
+  cost: numeric("cost", { precision: 10, scale: 2 }),
+  currency: text("currency").default("EUR"),
+  renewalDate: timestamp("renewal_date", { withTimezone: true }),
+  notes: text("notes"),
+  createdBy: integer("created_by").references(() => usersTable.id),
+  createdAt: timestamp("created_at", { withTimezone: true }).notNull().defaultNow(),
+});