docs(frontend): add hooks naming and organization conventions

[dantovska]

What

Expands the Custom Hooks section of the frontend skill (.ai/skills/frontend/SKILL.md) with explicit naming, organization, and barrel-file conventions for custom React hooks.

Previously the skill only said "store component-specific hooks in the component's /hooks directory." The new content documents the conventions actually used across the vector search and vector set features:

• Naming — use prefix, camelCase, file named exactly after the hook, named exports only; context hooks defined inline in their provider.
• Organization — feature-wide vs. component-scoped hooks/ dirs; one folder per non-trivial hook with .types.ts / .utils.ts / .spec.ts companions colocated.
• Barrels — per-hook index.ts re-exporting the hook + public types, and a hooks/index.ts aggregator (tied to the existing 3+ items barrel rule).

Docs-only change to a skill file; no code or runtime impact.

Testing

No code changes — review the rendered Markdown in .ai/skills/frontend/SKILL.md.

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Note

Low Risk
Documentation-only change to a skill file; no application code or runtime behavior is affected.

Overview
Expands Custom Hooks in .ai/skills/frontend/SKILL.md beyond the one-line “put hooks in /hooks” note with conventions aligned to vector-search / vector-set patterns.

Naming documents use + camelCase, named exports only, hook files named after the hook (camelCase, not PascalCase), and context hooks living in their provider file.

Organization distinguishes feature-level vs component-scoped hooks/, one folder per non-trivial hook with colocated *.types.ts, *.utils.ts, and *.spec.ts, and simple hooks as a single file.

Barrels adds per-hook index.ts re-exports and a hooks/index.ts aggregator gated by the existing 3+ hooks barrel rule.

^{Reviewed by Cursor Bugbot for commit f5e25e3. Bugbot is set up for automated code reviews on this repo. Configure here.}

[jit-ci]

🛡️ Jit Security Scan Results

✅ No security findings were detected in this PR

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^{Security scan by Jit}

[dantovska]

decided to leave it up to personal preference depending on the case