Claude Haiku 5.5 (effort default (no --effort flag) · thinking on) on Model ladder: fix 10 real merged bugs with tests hidden

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  "result": "Fixed. Fractional sizes now behave like their integer part in `customRandom()` and `customAlphabet()`, in both the node and browser builds. The test suite passes (85/85, up from 83 with the two new assertions).\n\n**Cause:** the generators returned by `customRandom()` used the raw `size` in the loops. With `16.5`, the power-of-two path ran `while (j--)` from `16.5`, so it indexed `bytes[15.5]`, which is `undefined`. `undefined & mask` is `0`, so every character became `alphabet[0]`. The non-power-of-two path had the same problem with the length check: it stopped at 17 characters instead of 16. The node `customAlphabet()` looked correct only because its fast path normalizes `size |= 0` itself, while its fallback to `customRandom()` didn't.\n\n**Change:**\n- `index.js` and `index.browser.js`: in both generators of `customRandom()`, added `size |= 0` before the `!size` check, with a short comment in the same style as the existing `|=` comment in `index.js`. The browser `customAlphabet()` delegates to the same code, so it is fixed too.\n- `test/index.test.js`: added a `customRandom` test that runs for both builds and checks that `16.5` and `4.9` produce 16 and 4 characters on power-of-two and non-power-of-two alphabets, and that `customAlphabet()` returns 16 characters for `16.5`.\n\nBefore the fix, the repro gave `\"[REDACTED:credit_card]\"` in the browser and `\"cdacd\"` for a non-power-of-two `4.5` in node. After it, both return the correct length with random characters.\n\n`oxlint` could not run here: the installed version fails to load its config on the available Node 20.19.2. This is a toolchain issue, not something this change introduced. I did not run the formatter check separately, so treat formatting as unverified.",
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