* fix: return error on size mismatch in ReadNeedleMeta for consistency
When ReadNeedleMeta encounters a size mismatch at offset >= MaxPossibleVolumeSize,
it previously just continued without returning an error, potentially using wrong data.
This fix makes ReadNeedleMeta consistent with ReadBytes (needle_read.go), which
properly returns an error in both cases:
- ErrorSizeMismatch when offset < MaxPossibleVolumeSize (to trigger retry at offset+32GB)
- A descriptive error when offset >= MaxPossibleVolumeSize (after retry failed)
Fixes#7673
* refactor: use more accurate error message for size mismatch
* fix: prevent makeslice panic in ReadNeedleMeta with corrupted needle
When a needle's DataSize in the .dat file is corrupted to a very large
value, the calculation of metaSize can become negative, causing a panic
with 'makeslice: len out of range' when creating the metadata slice.
This fix adds validation to check if metaSize is negative before
creating the slice, returning a descriptive error instead of panicking.
Fixes#7475
* Update weed/storage/needle/needle_read_page.go
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
