)]}'
{
  "log": [
    {
      "commit": "2f999111687d352fb36d22db15d00fd929c21543",
      "tree": "89b7af73753752a1e140dcfef8cefc85dbf5b381",
      "parents": [
        "547feda05a4f846bb5fa7d32fe10dd10385fd0f0"
      ],
      "author": {
        "name": "Sketch🕴️",
        "email": "skallywag@sketch.dev",
        "time": "Sat Feb 28 20:58:17 2026 +0400"
      },
      "committer": {
        "name": "Sketch🕴️",
        "email": "skallywag@sketch.dev",
        "time": "Sat Feb 28 20:58:17 2026 +0400"
      },
      "message": "Step 5: Add Evaluator struct with env, Define, FuncCall support; backward-compat Eval preserved\n"
    },
    {
      "commit": "586f28e03a608b86df0c07b6662009f352409fc3",
      "tree": "d15fcbe5f806449924e0ccb1c9953fec8ee9287f",
      "parents": [
        "b05c53fb01342873787b545359f443b5dbf2be7f"
      ],
      "author": {
        "name": "Sketch🕴️",
        "email": "skallywag@sketch.dev",
        "time": "Sat Feb 28 19:14:46 2026 +0400"
      },
      "committer": {
        "name": "Sketch🕴️",
        "email": "skallywag@sketch.dev",
        "time": "Sat Feb 28 19:14:46 2026 +0400"
      },
      "message": "Step 6: Implement evaluator with TDD\n\n- Eval(ast.Node) (float64, error) - recursive AST walker\n- Handles all 4 operators: +, -, *, /\n- Division by zero returns error\n- Error propagation from sub-expressions\n- 10 unit tests covering: single number, all operators, nested/deep\n  expressions, division by zero (direct and in sub-expr), floats\n"
    }
  ]
}