fix(cli): include ~/.codex/skills in user skill discovery (#482) (#487)

The skill listing only scanned ~/.agents/skills and ~/.claude/skills
for user-level skills, ignoring ~/.codex/skills where Codex users
commonly store their skills. Add ~/.codex/skills to getUserSkillsRoots()
so these skills appear in the web UI $ autocomplete.

Hidden directories (starting with .) inside the skills root are still
skipped (e.g., .system/).

via [HAPI](https://hapi.run)

Co-authored-by: HAPI <noreply@hapi.run>

cli/src/modules/common/skills.test.ts

@@ -69,14 +69,15 @@ describe('listSkills', () => {
         expect(skills.find((s) => s.name === 'alpha')?.description).toBe('Alpha from agents')
     })
 
-    it('ignores legacy ~/.codex skills', async () => {
+    it('lists user skills from ~/.codex/skills', async () => {
         await writeSkill(join(homeDir, '.agents', 'skills', 'amis'), 'amis', 'AMIS guide')
         await writeSkill(join(homeDir, '.codex', 'skills', 'hello-agents'), 'helloagents', 'Main skill')
+        // Hidden directories (starting with .) are skipped
         await writeSkill(join(homeDir, '.codex', 'skills', '.system', 'skill-creator'), 'skill-creator', 'Create skills')
 
         const skills = await listSkills()
 
-        expect(skills.map((skill) => skill.name)).toEqual(['amis'])
+        expect(skills.map((skill) => skill.name)).toEqual(['amis', 'helloagents'])
     })
 
     it('falls back to directory name when frontmatter is missing', async () => {

cli/src/modules/common/skills.ts

@@ -26,6 +26,7 @@ function getUserSkillsRoots(): string[] {
     return [
         join(home, '.agents', 'skills'),
         join(home, '.claude', 'skills'),
+        join(home, '.codex', 'skills'),
     ];
 }