・Remove signingConfigs block from build config to fix F-Droid reproducible build ・No feature changes

Minimalist and immersive Chinese traditional poetry reader SuFei (素扉) is a minimalist application dedicated to the immersive reading of traditional Chinese poetry. Designed with the philosophy of "Simple Elegance" (素) and "Opening the Door to Literature" (扉), it provides a digital space free from advertisements and social distractions. Key Features: • Immersive Reading: A refined layout optimized for classical texts, supporting built-in high-quality serif fonts (Noto Serif SC) and a traditional paper-like reading feel across all Android versions. • Daily Encounters: Discover a curated piece of poetry every hour. Our smart algorithm extracts the most evocative and semantically complete lines, presented in a beautiful vertical layout. • Comprehensive Library: Browse through a vast collection with a structured filtering system by dynasty, tune name (Ci-pai), and thematic tags. • Personal Collection: Save your favorite pieces to your "Bedside" collection for quiet reflection at any time. • Genre Awareness: Intelligent recognition of different styles (Shi, Ci, Qu), automatically tailoring the extraction and display logic to capture the soul of each genre. • Modern Experience: Fully built with Jetpack Compose and Navigation 3, featuring fluid crossfade transitions and native support for Android 13+ predictive back gestures. Experience the eternal beauty of classical Chinese literature in its purest form with SuFei.