feat: more work on python scriptiong basics

tests/renderer/python/abiV1.test.ts

@@ -0,0 +1,41 @@
+import { describe, expect, it } from 'vitest';
+import { parseMacroContextV1 } from '../../../src/renderer/python/abiV1';
+
+describe('macroContextV1Schema', () => {
+  it('accepts optional env hook and source metadata', () => {
+    const parsed = parseMacroContextV1({
+      env: {
+        isPreview: true,
+        mainLanguage: 'en',
+        hook: 'post:render',
+        source: {
+          kind: 'post',
+          id: 'post-1',
+        },
+      },
+      params: {
+        title: 'Hello',
+      },
+      data: {
+        post: {
+          id: 'post-1',
+          slug: 'hello',
+        },
+      },
+    });
+
+    expect(parsed.env.hook).toBe('post:render');
+    expect(parsed.env.source).toEqual({ kind: 'post', id: 'post-1' });
+  });
+
+  it('rejects unknown env fields', () => {
+    expect(() =>
+      parseMacroContextV1({
+        env: {
+          isPreview: true,
+          unknown: 'value',
+        },
+      })
+    ).toThrow('Invalid macro context');
+  });
+});