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Drops the `redundancy` option from the three `S3Cache` put paths. `S3Bucket.put` already falls back to `STANDARD` when nothing is passed (`lib/s3-handler.ts:77`), so the deletion is the whole fix. One thing beyond what the issue lists: `lib/stats.ts` asks for the same class when it flushes compilation records, and that is the only other caller in the tree. Those records are not reconstructible the way a cache entry is, so the lower durability costs something there and buys nothing. I moved it across in the same commit rather than leaving a single RRS write behind, but say the word and I will pull it back out into its own PR. For the regression guard I added a case per file, both asserting the `StorageClass` that reaches the mocked `PutObjectCommand`: `test/cache-tests.ts` covers `put`, `putWithTTL` and `putWithTTLAndPath`, and `test/stats-test.ts` covers the flush. Reverting either source file turns the matching test red with `REDUCED_REDUNDANCY` instead of `STANDARD`. Verified in a `node:22-bookworm` container, which is where my node_modules live: full suite 2630 passed, 1 skipped across 122 files, plus `npm run ts-check` and `biome check` clean. Committed through the normal pre-commit hook.