fix(web): homepage entry count excludes tutorials and docs

[LucasSantana-Dev]

What

The homepage total entry count in apps/web/src/pages/index.astro only sums skills + agents + servers + hooks + commands + tools. Tutorials and docs are not included, so the displayed count is lower than the actual catalog size.

Acceptance criteria

• total variable includes tutorials.length and docs.length
• Displayed count matches actual catalog entry count

Evidence

• apps/web/src/pages/index.astro — const total = skills.length + agents.length + servers.length + hooks.length + commands.length + tools.length;

_{Surfaced by /backlog on 2026-05-27. Dedup key: inline-shell:index.astro:total-count.}