v0.5.1: Design overhaul — felhom.eu branding, blue/cyan color scheme

- New color palette matching felhom.eu/controller templates (blue/cyan accent)
- Plus Jakarta Sans font, 12px border radius, accent glow on focus
- felhom.eu logo in navbar, "Powered by felhom.eu" footer
- Settings page: documentation about external vs internal Docker URLs
- Fixed version double "v" prefix display
- Cleaned up example HTML files from development

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/main.py

@@ -3,7 +3,7 @@
 import os
 import traceback
 
-from flask import Flask, render_template, request, redirect, url_for, flash, jsonify
+from flask import Flask, render_template, request, redirect, url_for, flash, jsonify, send_from_directory
 
 from app import config
 from app.scraper import scrape, supported_sites
@@ -195,6 +195,19 @@ def list_all_tags():
     return jsonify({"mealie": mealie_tags, "tandoor": tandoor_tags})
 
 
+# ---------------------------------------------------------------------------
+# Assets
+# ---------------------------------------------------------------------------
+
+ASSETS_DIR = os.path.join(os.path.dirname(__file__), "assets")
+
+
+@app.route("/assets/<path:filename>")
+def serve_asset(filename):
+    """Serve static assets (logo, etc.) from app/assets/."""
+    return send_from_directory(ASSETS_DIR, filename)
+
+
 # ---------------------------------------------------------------------------
 # Health
 # ---------------------------------------------------------------------------