docs(skills): document reduced catalog and budgets

adapters/prompt-budget-baseline.json

@@ -4,16 +4,16 @@
   "permanent_context_hard_limit_tokens": 15000,
   "metrics": {
     "permanent_context_tokens": {
-      "claude": 14521,
-      "codex": 12997
+      "claude": 5451,
+      "codex": 3767
     },
     "instruction_tokens": {
       "claude": 1485,
       "codex": 1485
     },
     "skill_metadata_tokens": {
-      "claude": 12233,
-      "codex": 10784
+      "claude": 3163,
+      "codex": 1554
     },
     "auto_loaded_rule_tokens": {
       "claude": 678,

adapters/prompt-budget-baseline.tsv

@@ -1,10 +1,10 @@
 metric	client	baseline_tokens
-permanent_context_tokens	claude	14521
-permanent_context_tokens	codex	12997
+permanent_context_tokens	claude	5451
+permanent_context_tokens	codex	3767
 instruction_tokens	claude	1485
 instruction_tokens	codex	1485
-skill_metadata_tokens	claude	12233
-skill_metadata_tokens	codex	10784
+skill_metadata_tokens	claude	3163
+skill_metadata_tokens	codex	1554
 auto_loaded_rule_tokens	claude	678
 auto_loaded_rule_tokens	codex	678
 rule_catalog_tokens	claude	28818