Use formal source-prefixed release IDs

README.md

@@ -48,7 +48,7 @@ length is 145 steps, and the maximum is 728 steps.
 
 | Field | Description |
 |---|---|
-| `question_ID` | Source-prefixed trajectory identifier |
+| `question_ID` | Formal source-prefixed trajectory identifier (`<source>__NNN`) |
 | `history` | Complete ordered trajectory |
 | `mistake_agent` | Reference responsible role |
 | `mistake_step` | Reference 0-based root-cause step |
@@ -56,6 +56,8 @@ length is 145 steps, and the maximum is 728 steps.
 
 The responsible role and root-cause step are evaluated independently. The role
 must not be inferred automatically from the emitter of `mistake_step`.
+Release IDs are numbered independently within each source and should be treated
+as stable, opaque keys.
 
 ## Usage
 

data/test-00000-of-00003.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c6af6c22b1c0473f6bf1844975cc7446ab90ba311bcf593e5d83ded473bc0503
-size 113424430
+oid sha256:5fd9730b64289bb432dc2d8d188e0099877b5c64a01c584eacbf4015a5fba7b9
+size 32689147

data/test-00001-of-00003.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d615aba9f32fa560af56877a57d8b8a5168a812a39320fa5cdce918550c252be
-size 61335831
+oid sha256:335ee3b9c6813b65f5173cb43710a0110e7b7ed445dabc0ff1563604d1debdbf
+size 18410424

data/test-00002-of-00003.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:216cf35edd45cfc4deb19649df1cea8195f2319e0e7e1ef9117084c05dae4751
-size 42671310
+oid sha256:54b560e20f300eee2ce52e1f7cb892224c510b7656c5b9336986e4ec60a771c5
+size 9864080