feat: trim docs bundle to coding-essential sections

Exclude community/, tutorials/ and plugin/ from the bundled docs —
agents rarely need them while coding and llms.txt covers them online.
Bundle: 356 -> 323 files, 0.79MB -> 0.67MB unpacked (~205KB gzipped
transfer). Size limit tightened to 2MB.

Author: keepview

packages/solutions/app-tools/scripts/copy-main-doc.mjs

@@ -13,14 +13,27 @@ const source = path.resolve(pkgRoot, '../../document/docs/en');
 const bundleRoot = path.resolve(pkgRoot, 'main-doc');
 const target = path.join(bundleRoot, 'docs/en');
 
+// Top-level doc sections excluded from the bundle to keep it small.
+// Agents rarely need these while coding (blog/showcase, narrative
+// tutorials, framework-plugin authoring); llms.txt covers them online.
+// Keep this list in sync with scripts/check-doc-bundle.mjs.
+export const EXCLUDED_SECTIONS = ['community', 'tutorials', 'plugin'];
+
 if (!fs.existsSync(source)) {
   console.error(`[copy-main-doc] source docs not found: ${source}`);
   process.exit(1);
 }
 
 fs.rmSync(bundleRoot, { recursive: true, force: true });
 fs.mkdirSync(path.dirname(target), { recursive: true });
-fs.cpSync(source, target, { recursive: true });
+fs.cpSync(source, target, {
+  recursive: true,
+  filter: src => {
+    const rel = path.relative(source, src);
+    const top = rel.split(path.sep)[0];
+    return rel === '' || !EXCLUDED_SECTIONS.includes(top);
+  },
+});
 
 const count = fs
   .readdirSync(target, { recursive: true, withFileTypes: true })

scripts/check-doc-bundle.mjs

@@ -16,12 +16,22 @@ const repoRoot = path.resolve(__dirname, '..');
 const docsSource = path.join(repoRoot, 'packages/document/docs/en');
 const appTools = path.join(repoRoot, 'packages/solutions/app-tools');
 
-const SIZE_LIMIT = 3 * 1024 * 1024;
+const SIZE_LIMIT = 2 * 1024 * 1024;
 const OUTSIDE_DOCS_WHITELIST = [/\.\.\/.*src\/sandbox\//];
+// must stay in sync with EXCLUDED_SECTIONS in
+// packages/solutions/app-tools/scripts/copy-main-doc.mjs
+const EXCLUDED_SECTIONS = ['community', 'tutorials', 'plugin'];
 
 const sourceFiles = fs
   .readdirSync(docsSource, { recursive: true, withFileTypes: true })
-  .filter(entry => entry.isFile());
+  .filter(entry => entry.isFile())
+  .filter(entry => {
+    const rel = path.relative(
+      docsSource,
+      path.join(entry.parentPath ?? entry.path, entry.name),
+    );
+    return !EXCLUDED_SECTIONS.includes(rel.split(path.sep)[0]);
+  });
 
 // 1 & 3: inspect the tarball file list
 execSync('node ./scripts/copy-main-doc.mjs', {