refactor: Restructure monorepo to apps/server/ and apps/web/ layout

Move src/ → apps/server/ and packages/web/ → apps/web/ to adopt
standard monorepo conventions (apps/ for runnable apps, packages/
for reusable libraries). Update all config files, shared package
imports, test fixtures, and documentation to reflect new paths.

Key fixes:
- Update workspace config to ["apps/*", "packages/*"]
- Update tsconfig.json rootDir/include for apps/server/
- Add apps/web/** to vitest exclude list
- Update drizzle.config.ts schema path
- Fix ensure-schema.ts migration path detection (3 levels up in dev,
  2 levels up in dist)
- Fix tests/integration/cli-server.test.ts import paths
- Update packages/shared imports to apps/server/ paths
- Update all docs/ files with new paths

apps/server/agent/alias.ts

@@ -0,0 +1,34 @@
+/**
+ * Agent Alias Generator
+ *
+ * Generates unique funny aliases for agents using adjective-animal combinations.
+ * E.g., "jolly-penguin", "bold-eagle", "swift-otter".
+ */
+
+import { uniqueNamesGenerator, adjectives, animals } from 'unique-names-generator';
+import type { AgentRepository } from '../db/repositories/agent-repository.js';
+
+const MAX_RETRIES = 10;
+
+/**
+ * Generate a unique agent alias that doesn't collide with existing agent names.
+ *
+ * @param repository - Agent repository to check for name collisions
+ * @returns A unique adjective-animal alias (e.g., "jolly-penguin")
+ */
+export async function generateUniqueAlias(repository: AgentRepository): Promise<string> {
+  for (let i = 0; i < MAX_RETRIES; i++) {
+    const alias = uniqueNamesGenerator({
+      dictionaries: [adjectives, animals],
+      separator: '-',
+      style: 'lowerCase',
+    });
+
+    const existing = await repository.findByName(alias);
+    if (!existing) {
+      return alias;
+    }
+  }
+
+  throw new Error(`Failed to generate unique alias after ${MAX_RETRIES} attempts`);
+}