chore: remove empty silo-diagnostic scaffolding

[ghost-exodus]

components/silo-diagnostic/ contains two empty files (index.html, style.css) with no references anywhere in the codebase. No .ts, .tsx, .js, or .json file imports or references this directory. This is leftover scaffolding that adds clutter to the components/ directory.

Remove the entire components/silo-diagnostic/ directory.

Description

Fixes # (issue number)

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

Checklist before requesting a review:

• [x]I have read the CONTRIBUTING.md file.
• I have tested these changes locally (localhost:3000/api/streak?user=YOUR_USERNAME).
• I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
• My commits follow the Conventional Commits format (e.g., feat(themes): ..., fix(calculate): ...).
• I have updated README.md if I added a new theme or URL parameter.
• I have started the repo.
• I have made sure that i have only one commit to merge in this PR.
• The SVG output matches the CommitPulse "premium quality" aesthetic standard (no raw elements, smooth animations, correct fonts).
• (Recommended) I joined the CommitPulse Discord community for contributor discussions, mentorship, and faster PR support.

Fixes #5919

[vercel]

@ghost-exodus is attempting to deploy a commit to the jhasourav07's projects Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

📦 Next.js Bundle Size Report (Gzipped Sizes)

✨ No significant bundle size changes detected.

📊 Summary of Totals

Category	PR Size	Base Size	Difference
Total JS	3628.47 KB	3628.47 KB	0 B
Total CSS	284.92 KB	284.92 KB	0 B

[Aamod007]

Difficulty: beginner – Removes 2 empty placeholder files: silo-diagnostic/index.html and style.css.

Quality: clean – Simple cleanup.

Type: refactor – Code maintenance, removes unused scaffolding.

Good housekeeping!