git: repair unreachable object corruption

♠ Problem statement : git fsck failed in a linked worktree, even though every branch and reflog remained intact. The initial diagnosis was noisy: missing blobs, hundreds of dangling objects, and an invalid commit graph: missing blob 97f9a2ed29f84e47848244c2d2626b2536a33c55 error: Could not read 003fb43a3aa361b52f2ab3f27bdabcb9b5137103 failed to parse commit 003fb43a3aa361b52f2ab3f27bdabcb9b5137103…