feat: add lyricResolve for resole .lrc file

feat: add backgroundDisplay for play ascii video in terminal
	feat: add musicPlayer for play music in terminal

modules/lyricResolve.h

@@ -0,0 +1,54 @@
+// lyricResolve.h
+//
+// Parse .lrc lyric files and play them back on a timeline in the terminal.
+//
+// playLyrics()/playLyricsFile() anchor their timeline at the moment they are
+// called (t = 0) and print each lyric line at its timestamp. The module is
+// self-contained and multibyte-safe: Japanese/Chinese UTF-8 lines are printed
+// whole and only ever truncated on a character boundary.
+
+#pragma once
+
+#include <atomic>
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace lr {
+
+struct LyricLine {
+    int64_t timeMs = 0;  // from the start of the track
+    std::string text;    // empty => clear the display
+};
+
+struct LyricInfo {
+    std::vector<LyricLine> lines;  // sorted ascending by timeMs (stable)
+    std::string title, artist, album, by;
+    int offsetMs = 0;
+    bool valid = false;  // false if nothing was parsed
+};
+
+// Parse LRC text: "[mm:ss.xx]text", multiple timestamps per line, metadata
+// tags ([ti:]/[ar:]/[al:]/[by:]/[offset:]) and timestamp-only lines (empty
+// text, which clears the display). The [offset:] value is applied to all lines.
+LyricInfo parseLrc(const std::string& text);
+
+// Read a file and parse it. Returns a LyricInfo with valid == false on error.
+LyricInfo parseLrcFile(const std::string& path);
+
+struct LyricDisplayOptions {
+    int row = 0;       // 1-based terminal row; 0 = auto (last terminal row)
+    bool show = true;  // false => run the timeline silently (no terminal writes)
+};
+
+// Play the lyrics on a timeline starting at t = 0. Blocks until every line has
+// been shown (or `stop` is set). Returns 0.
+int playLyrics(const LyricInfo& lyric,
+               const LyricDisplayOptions& opts = {},
+               std::atomic<bool>* stop = nullptr);
+
+int playLyricsFile(const std::string& path,
+                   const LyricDisplayOptions& opts = {},
+                   std::atomic<bool>* stop = nullptr);
+
+}  // namespace lr