Add synthetic recording test framework and improve frame converter reliability #5129

Job	Run time
Lint (Biome)	14s
Typecheck	1m 11s
Format (Cargo)	15s
Detect Changes	5s
Format (Biome)	9s
Verify Tauri plugin versions	12s
Clippy (x86_64-pc-windows-msvc, windows-latest)	3m 47s
Clippy (aarch64-apple-darwin, macos-latest)	1m 25s
Build Desktop	0s
Rust cache	0s
	7m 18s

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