remove internal documentation before making repo public

Deleted: AGENTS.md, CLAUDE.md, CODE_OF_CONDUCT.md, DEVELOPMENT.md,
FUTURE_PLANS.md, PROJECT_CONTEXT.md, SECURITY.md, TODO.md,
public/FAVICON_INSTRUCTIONS.md

These were internal planning docs, AI tool context files, and outdated
roadmap/todo files with no value for public visitors. README updated to
remove references to deleted files.

public/FAVICON_INSTRUCTIONS.md

@@ -1,51 +0,0 @@
-# Favicon Generation Instructions
-
-The following favicon files are referenced in the site but need to be generated:
-
-- `favicon-16x16.png` - 16x16px PNG favicon
-- `favicon-32x32.png` - 32x32px PNG favicon  
-- `apple-touch-icon.png` - 180x180px PNG for Apple devices
-- `og-image.png` - 1200x630px PNG for social media sharing (optional, currently using SVG)
-
-## How to Generate
-
-### Option 1: Use an Online Tool
-Visit https://realfavicongenerator.net/ and upload your source image (coffee emoji or custom design).
-
-### Option 2: Use ImageMagick (if available)
-If you have a source PNG image:
-
-```bash
-# 16x16
-convert source.png -resize 16x16 favicon-16x16.png
-
-# 32x32
-convert source.png -resize 32x32 favicon-32x32.png
-
-# Apple touch icon
-convert source.png -resize 180x180 apple-touch-icon.png
-
-# OG image
-convert source.png -resize 1200x630 og-image.png
-```
-
-### Option 3: Use the SVG favicon
-The current `favicon.svg` (coffee emoji) works in modern browsers. The PNG variants are fallbacks for older browsers and specific platforms.
-
-## Current Status
-
-- ✅ `favicon.svg` - Exists (coffee emoji)
-- ❌ `favicon-16x16.png` - Needs to be created
-- ❌ `favicon-32x32.png` - Needs to be created
-- ❌ `apple-touch-icon.png` - Needs to be created
-- ✅ `og-image.svg` - Created (SVG placeholder)
-- ⚠️  `og-image.png` - Optional (browsers support SVG, but PNG is more compatible)
-
-## Design Recommendations
-
-Use the cozy coffee theme colors:
-- Background: `#1a1410` (dark coffee)
-- Accent: `#e8bf8e` (light coffee/cream)
-- Text: `#f4e9d8` (cream)
-
-The favicon should be simple and recognizable at small sizes. The coffee emoji ☕ is perfect!