Add initial Go server skeleton with HTTP handlers, middleware, job runner, and stubs

migrations/0001_schema.sql

@@ -0,0 +1,25 @@
+-- 0001_schema.sql
+CREATE TABLE IF NOT EXISTS users (
+  id TEXT PRIMARY KEY,
+  username TEXT NOT NULL UNIQUE,
+  password_hash TEXT,
+  role TEXT,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS pools (
+  name TEXT PRIMARY KEY,
+  guid TEXT,
+  health TEXT,
+  capacity TEXT
+);
+
+CREATE TABLE IF NOT EXISTS jobs (
+  id TEXT PRIMARY KEY,
+  type TEXT,
+  status TEXT,
+  progress INTEGER DEFAULT 0,
+  owner TEXT,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME
+);