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* fix(s3): verify SigV4 signature with decoded path behind X-Forwarded-Prefix When SeaweedFS is hosted behind a reverse proxy that strips a URL prefix (X-Forwarded-Prefix) and forwards the percent-encoded request path, signature verification fails for object keys containing non-ASCII characters. The client signs the canonical URI as the single percent-encoded path including the prefix, but the server verifies against the already-encoded forwarded path joined to the prefix, producing a mismatch (SignatureDoesNotMatch). Decode the forwarded path and rejoin the prefix before verifying, mirroring the existing un-prefixed decoded retry. ASCII keys are unaffected because the decoded path equals the original, so the retry is skipped. Signed-off-by: Mohd Quamar Tyagi <104281681+Tyagiquamar@users.noreply.github.com> * s3: build the SigV4 candidate paths once and try them per host The forwarded-prefix and plain branches each repeated the decode-and-verify step for every host candidate. List the escaped and decoded paths once, the prefixed forms first, and verify them in the same order as before. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Signed-off-by: Mohd Quamar Tyagi <104281681+Tyagiquamar@users.noreply.github.com> Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>