merge: integrate origin/main (v0.18.3.0) — community wave

Resolves conflicts:
- VERSION: kept 0.19.0.0 (feature branch, higher than main's 0.18.3.0)
- package.json: kept 0.19.0.0
- CHANGELOG.md: preserved 0.19.0.0 at top, inserted 0.18.3.0 between 0.19.0.0 and 0.18.2.0

Main brought community wave (6 PRs + hardening):
- Windows cookie import
- Persistent browse server across CLI invocations
- One-command OpenCode install
- OpenClaw skill frontmatter fixes
- Cookie picker UI resilience

Auto-merge applied to design.ts, design-consultation/SKILL.md.tmpl,
design-shotgun/SKILL.md.tmpl, and plan-design-review/SKILL.md.tmpl —
main's UX_PRINCIPLES changes and my TASTE_PROFILE resolver coexist cleanly.

Regenerated all SKILL.md files via gen:skill-docs and refreshed ship
golden fixtures. 423 tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

test/gen-skill-docs.test.ts

@@ -2122,15 +2122,16 @@ describe('setup script validation', () => {
     expect(fnBody).toContain('rm -f "$target"');
   });
 
-  test('setup supports --host auto|claude|codex|kiro', () => {
+  test('setup supports --host auto|claude|codex|kiro|opencode', () => {
     expect(setupContent).toContain('--host');
-    expect(setupContent).toContain('claude|codex|kiro|factory|auto');
+    expect(setupContent).toContain('claude|codex|kiro|factory|opencode|auto');
   });
 
-  test('auto mode detects claude, codex, and kiro binaries', () => {
+  test('auto mode detects claude, codex, kiro, and opencode binaries', () => {
     expect(setupContent).toContain('command -v claude');
     expect(setupContent).toContain('command -v codex');
     expect(setupContent).toContain('command -v kiro-cli');
+    expect(setupContent).toContain('command -v opencode');
   });
 
   // T1: Sidecar skip guard — prevents .agents/skills/gstack from being linked as a skill
@@ -2150,7 +2151,6 @@ describe('setup script validation', () => {
     expect(content).toContain('$GSTACK_BIN/');
   });
 
-  // T3: Kiro host support in setup script
   test('setup supports --host kiro with install section and sed rewrites', () => {
     expect(setupContent).toContain('INSTALL_KIRO=');
     expect(setupContent).toContain('kiro-cli');
@@ -2158,6 +2158,21 @@ describe('setup script validation', () => {
     expect(setupContent).toContain('~/.kiro/skills/gstack');
   });
 
+  test('setup supports --host opencode with install section and OpenCode skill path vars', () => {
+    expect(setupContent).toContain('INSTALL_OPENCODE=');
+    expect(setupContent).toContain('OPENCODE_SKILLS="$HOME/.config/opencode/skills"');
+    expect(setupContent).toContain('OPENCODE_GSTACK="$OPENCODE_SKILLS/gstack"');
+  });
+
+  test('setup installs OpenCode skills into a nested gstack runtime root', () => {
+    expect(setupContent).toContain('create_opencode_runtime_root');
+    expect(setupContent).toContain('.opencode/skills');
+    expect(setupContent).toContain('review/specialists');
+    expect(setupContent).toContain('qa/templates');
+    expect(setupContent).toContain('qa/references');
+    expect(setupContent).toContain('dx-hall-of-fame.md');
+  });
+
   test('create_agents_sidecar links runtime assets', () => {
     // Sidecar must link bin, browse, review, qa
     const fnStart = setupContent.indexOf('create_agents_sidecar()');

test/host-config.test.ts

@@ -354,6 +354,21 @@ describe('host-config-export.ts CLI', () => {
     expect(lines).toContain('review/checklist.md');
   });
 
+  test('opencode symlinks returns nested runtime assets', () => {
+    const { stdout, exitCode } = run('symlinks', 'opencode');
+    expect(exitCode).toBe(0);
+    const lines = stdout.split('\n');
+    expect(lines).toContain('bin');
+    expect(lines).toContain('browse/dist');
+    expect(lines).toContain('browse/bin');
+    expect(lines).toContain('review/design-checklist.md');
+    expect(lines).toContain('review/greptile-triage.md');
+    expect(lines).toContain('review/specialists');
+    expect(lines).toContain('qa/templates');
+    expect(lines).toContain('qa/references');
+    expect(lines).toContain('plan-devex-review/dx-hall-of-fame.md');
+  });
+
   test('symlinks with missing host exits 1', () => {
     const { exitCode } = run('symlinks');
     expect(exitCode).toBe(1);

test/openclaw-native-skills.test.ts

@@ -0,0 +1,35 @@
+import { describe, test, expect } from 'bun:test';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const ROOT = path.resolve(import.meta.dir, '..');
+
+const OPENCLAW_NATIVE_SKILLS = [
+  'openclaw/skills/gstack-openclaw-investigate/SKILL.md',
+  'openclaw/skills/gstack-openclaw-office-hours/SKILL.md',
+  'openclaw/skills/gstack-openclaw-ceo-review/SKILL.md',
+  'openclaw/skills/gstack-openclaw-retro/SKILL.md',
+];
+
+function extractFrontmatter(content: string): string {
+  expect(content.startsWith('---\n')).toBe(true);
+  const fmEnd = content.indexOf('\n---', 4);
+  expect(fmEnd).toBeGreaterThan(0);
+  return content.slice(4, fmEnd);
+}
+
+describe('OpenClaw native skills', () => {
+  test('frontmatter parses as YAML and keeps only name + description', () => {
+    for (const skill of OPENCLAW_NATIVE_SKILLS) {
+      const content = fs.readFileSync(path.join(ROOT, skill), 'utf-8');
+      const frontmatter = extractFrontmatter(content);
+      const parsed = Bun.YAML.parse(frontmatter) as Record<string, unknown>;
+
+      expect(Object.keys(parsed).sort()).toEqual(['description', 'name']);
+      expect(typeof parsed.name).toBe('string');
+      expect(typeof parsed.description).toBe('string');
+      expect((parsed.name as string).length).toBeGreaterThan(0);
+      expect((parsed.description as string).length).toBeGreaterThan(0);
+    }
+  });
+});