feat(api, web): implement short install link functionality for agents

- Added new API endpoints for creating, retrieving, and revoking install links for agents.
- Enhanced the agent installation process with short links accessible via `/agent-install/:id` and `/:slug`.
- Updated the README and documentation to reflect the new installation method and usage instructions.
- Refactored relevant components in the web application to support the new install link feature.
- Improved error handling and validation for install link operations.

Co-authored-by: Cursor <[email protected]>

packages/db/migrations/003_install_links.sql

@@ -0,0 +1,19 @@
+-- Agent install short-links (one-liner invites)
+
+CREATE TABLE IF NOT EXISTS agent_install_links (
+  id TEXT PRIMARY KEY,
+  slug TEXT NOT NULL UNIQUE,
+  client_name TEXT NOT NULL,
+  platform TEXT NOT NULL DEFAULT 'linux',
+  created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now')),
+  revoked_at TEXT,
+  last_used_at TEXT,
+  use_count INTEGER NOT NULL DEFAULT 0,
+  CHECK (platform IN ('linux', 'mikrotik')),
+  CHECK (length(trim(client_name)) > 0),
+  CHECK (length(trim(id)) > 0),
+  CHECK (length(trim(slug)) > 0)
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_agent_install_links_slug
+  ON agent_install_links (slug);

packages/db/src/repositories/index.ts

@@ -10,6 +10,7 @@ import {
   policyRuleResolved,
   ipOverrides,
   agentStatsSamples,
+  agentInstallLinks,
   settings,
   SHARED_POLICY_SET_ID,
 } from '../schema.js'
@@ -434,6 +435,59 @@ export function cloneRulesFrom(
   return getAgent(db, targetAgentId)
 }
 
+export function listInstallLinks(db: Db) {
+  return db
+    .select()
+    .from(agentInstallLinks)
+    .orderBy(desc(agentInstallLinks.createdAt))
+    .all()
+}
+
+export function getInstallLink(db: Db, id: string) {
+  return db
+    .select()
+    .from(agentInstallLinks)
+    .where(eq(agentInstallLinks.id, id))
+    .get()
+}
+
+export function getInstallLinkBySlug(db: Db, slug: string) {
+  return db
+    .select()
+    .from(agentInstallLinks)
+    .where(eq(agentInstallLinks.slug, slug))
+    .get()
+}
+
+export function insertInstallLink(
+  db: Db,
+  row: typeof agentInstallLinks.$inferInsert,
+) {
+  db.insert(agentInstallLinks).values(row).run()
+  return getInstallLink(db, row.id)
+}
+
+export function revokeInstallLink(db: Db, id: string) {
+  const now = new Date().toISOString()
+  db.update(agentInstallLinks)
+    .set({ revokedAt: now })
+    .where(eq(agentInstallLinks.id, id))
+    .run()
+  return getInstallLink(db, id)
+}
+
+export function touchInstallLink(db: Db, id: string) {
+  const now = new Date().toISOString()
+  db.update(agentInstallLinks)
+    .set({
+      lastUsedAt: now,
+      useCount: sql`${agentInstallLinks.useCount} + 1`,
+    })
+    .where(eq(agentInstallLinks.id, id))
+    .run()
+  return getInstallLink(db, id)
+}
+
 export const repos = {
   listAgents,
   getAgent,
@@ -481,6 +535,12 @@ export const repos = {
   setSetting,
   listSettings,
   cloneRulesFrom,
+  listInstallLinks,
+  getInstallLink,
+  getInstallLinkBySlug,
+  insertInstallLink,
+  revokeInstallLink,
+  touchInstallLink,
 }
 
 export { SHARED_POLICY_SET_ID }

packages/db/src/schema.ts

@@ -194,6 +194,26 @@ export const agentStatsSamples = sqliteTable(
   }),
 )
 
+/** Short install invite links (`/agent-install/:id` and `/:slug`). */
+export const agentInstallLinks = sqliteTable(
+  'agent_install_links',
+  {
+    id: text('id').primaryKey(),
+    slug: text('slug').notNull(),
+    clientName: text('client_name').notNull(),
+    platform: text('platform').notNull().default('linux'), // linux | mikrotik
+    createdAt: text('created_at')
+      .notNull()
+      .default(sql`(strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))`),
+    revokedAt: text('revoked_at'),
+    lastUsedAt: text('last_used_at'),
+    useCount: integer('use_count').notNull().default(0),
+  },
+  (t) => ({
+    slugIdx: uniqueIndex('idx_agent_install_links_slug').on(t.slug),
+  }),
+)
+
 export const SHARED_POLICY_SET_ID = 'set-shared-default'
 
 export const schema = {
@@ -207,4 +227,5 @@ export const schema = {
   policyRuleResolved,
   ipOverrides,
   agentStatsSamples,
+  agentInstallLinks,
 }