chore: initial commit of ai site platform

Co-authored-by: Cursor <cursoragent@cursor.com>

platform/internal/schema/ddl_test.go

@@ -0,0 +1,38 @@
+package schema_test
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+
+	"aijianzhan/platform/internal/blueprint"
+	"aijianzhan/platform/internal/schema"
+)
+
+func TestBuildDDLFromExample(t *testing.T) {
+	_, file, _, _ := runtime.Caller(0)
+	root := filepath.Clean(filepath.Join(filepath.Dir(file), "..", "..", ".."))
+	example := filepath.Join(root, "blueprint", "examples", "inventory-ledger.blueprint.json")
+	raw, err := os.ReadFile(example)
+	if err != nil {
+		t.Fatalf("read example: %v", err)
+	}
+	bp, err := blueprint.Parse(json.RawMessage(raw))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := bp.Validate("inventory_ledger"); err != nil {
+		t.Fatal(err)
+	}
+	bp.AssignSchemaName(1)
+	stmts, err := schema.BuildPostgresDDL(bp)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(stmts) < 2 {
+		t.Fatalf("expected schema+table ddl, got %d", len(stmts))
+	}
+	t.Logf("ddl count=%d first=%s", len(stmts), stmts[0])
+}