re: every AIParams object mapped to its stage, zero residual

StageResource.EnumerateAIParams names the table, and every name resolves.

29 StageResource records; 28 carry EnumerateAIParams (the one without it is the
_Test template); 23 distinct table names declared; 23/23 hash to an AIParams
object key under the prefix "stage\"; 0 objects left unnamed; 0 declared names
with no object.

AIParams_S01..S16 (16) + AIParams_S24..S29 (6) + AIParams_Tutorial.tbl shared by
six (UnitGroup_S18..S23, the tutorials) = 23 tables over 16 + 6 + 6 = 28 records.
The arithmetic closes both ways and matches the 23-object count found last
iteration.

Same sharing shape as the settings family (stage-settings-table.md: 24 objects,
StageParameter_Tutorial shared by six tutorials).  Two independent families agree
on how the tutorials are handled -- n=2, a pattern rather than a rule.

aiparams_census.py extended with the stage mapping; artefact +7/-0, byte-identical
across two runs; the other fourteen verify unchanged.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PMRJjbxLqZtsb5Vb7KunPE

docs/re/data/aiparams-census.txt

@@ -15,6 +15,13 @@
    declared names with no record in their own object: 0
    profile records total: 782  (= 23 objects x 34)
 
+## Which object is which stage
+   StageResource records: 29   carrying EnumerateAIParams: 28
+   distinct table names declared: 23   AIParams objects: 23
+   names that hash to an object key: 23 / 23  (prefix `stage\`, name_hash is case-insensitive)
+   objects left unnamed: 0   declared names with no object: 0
+   shared: AIParams_Tutorial.tbl    by 6 -> ['UnitGroup_S18.tbl', 'UnitGroup_S19.tbl', 'UnitGroup_S20.tbl', 'UnitGroup_S21.tbl', 'UnitGroup_S22.tbl', 'UnitGroup_S23.tbl']
+
 ## Does `Type` predict the field count?
    Fleet   6 fields  x253
    Squad   6 fields  x46