{
  "version": 1,
  "domain": "shared",
  "description": "Raw ID forms → canonical form. Both Python (normalize_id) and the extension (content.js normalizeId) MUST agree on these. Mismatch here is a contract bug.",
  "case_schema": {
    "name": "human label",
    "input": "raw ID-bearing token (no path, no extension)",
    "expected": "canonical ID"
  },
  "cases": [
    { "name": "lowercase prefix uppercased",           "input": "abc-027",         "expected": "ABC-027" },
    { "name": "FC2 plain -> FC2-PPV",                  "input": "FC2-1841460",     "expected": "FC2-PPV-1841460" },
    { "name": "FC2-PPV explicit preserved",            "input": "FC2-PPV-1841460", "expected": "FC2-PPV-1841460" },
    { "name": "leading zeros preserved",               "input": "ABF-042",         "expected": "ABF-042" },
    { "name": "5-digit numeric segment",               "input": "SDDE-12345",      "expected": "SDDE-12345" }
  ]
}