Create `src/strings.js` exporting `capitalize(str)` which upper-cases the first character and lower-cases the rest. The test expects `capitalize("hELLO") === "Hello"`.
| # | Model | Status | Duration | Tokens | Patch | Failure |
|---|---|---|---|---|---|---|
| 1 | deepseek-v4-prodeepseek | pass | 48.0s | 43.5k | yes | - |
| 2 | nemotron-3-ultra-550b-a55b:freeopenrouter | pass | 48.9s | 45.1k | yes | - |
| 3 | agyexternal | failed | 4.0s | - | - | - |
| 4 | agyconsensus | failed | 4.2s | - | - | - |