feat: Created the Lidarr mock and added a justfile

mock-htpc/music/Dream Theater/The Astonishing/0203 - Heaven’s Cove.txt

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+Under the glow of the midnight moon
+Where the stars touch the sky
+Stand the long forgotten names of a time gone by.
+
+Heaven's Cove was a wondrous sight,
+Once a beautiful place
+Now an empty shell, like a memory that time erased.
+
+As the pivotal moment draws closer
+Every shadow and whisper at night
+Music will rise like a phoenix from the ashes on this night.