v0.6.0: Sobors.hu parser, HTTP auth, recipe validation, UI polish

- New sobors.hu parser with ingredient groups and section headers
- Incomplete recipe warnings (missing ingredients/instructions)
- Optional HTTP Basic Auth (configurable on settings page)
- Brand text: "Recept" in white, "Importáló" in blue
- Larger logo (36px), favicon using logo_notext.svg

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

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## v0.6.0 (2026-02-24)
+
+### Added
+- Sobors.hu parser: ingredients (with groups), instructions (with section headers), tags
+- Incomplete recipe validation: warnings when ingredients or instructions are missing
+- Optional HTTP Basic Auth: configurable username/password on the settings page
+- Favicon (browser tab icon) using felhom.eu logo
+
+### Changed
+- Brand text: "Recept" in white, "Importáló" in blue (felhom.eu style)
+- Logo enlarged in navigation bar (28px → 36px)
+
 ## v0.5.1 (2026-02-24)
 
 ### Changed