conformance: exclude smalltalk (scrapes test.sh + foreign *.st corpus)

smalltalk conformance.sh catalogs foreign lib/smalltalk/tests/programs/*.st
programs, runs 'bash lib/smalltalk/test.sh -v', and scrapes its output (the
'OK 403/403' summary plus per-file pass counts via awk). It loads no SX test
suites directly and emits no SX counter/dict scoreboard. This is the briefing's
own classification example ('smalltalk runs *.st via test.sh') and the same
'scrapes a test.sh' exclusion as ocaml/lua. Left conformance.sh untouched;
recorded the exclusion.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

plans/agent-briefings/conformance-loop.md

@@ -92,7 +92,7 @@ Blocked with specifics and move to the next candidate next iteration.
 - [x] go — migrated 609/609 (dict; pass/count → :failed = count-pass, like erlang)
 - [~] js — excluded: foreign test262 .js fixtures vs .expected files (python escape, substring match)
 - [~] ocaml — excluded: scrapes lib/ocaml/test.sh (per-assertion epoch runner) + foreign .ml baseline
-- [ ] smalltalk
+- [~] smalltalk — excluded: scrapes lib/smalltalk/test.sh + walks foreign *.st corpus (per briefing)
 - [ ] tcl
 
 (Mark `[x] <x> — migrated N/N` or `[~] <x> — excluded: <reason>` or
@@ -100,6 +100,13 @@ Blocked with specifics and move to the next candidate next iteration.
 
 ## Progress log (newest first)
 
+- 2026-06-07 — smalltalk: EXCLUDED (the briefing's own classification example —
+  "smalltalk runs *.st via test.sh"). conformance.sh catalogs foreign
+  lib/smalltalk/tests/programs/*.st programs, runs `bash lib/smalltalk/test.sh -v`, and
+  scrapes its output (final "OK 403/403" summary + per-file pass counts via awk). It loads
+  no SX test suites directly and emits no SX counter/dict scoreboard — the bash layer
+  derives all numbers by text-scraping test.sh. Same "scrapes a test.sh" exclusion as
+  ocaml/lua. Left conformance.sh untouched. Not migrated.
 - 2026-06-07 — ocaml: EXCLUDED (scrapes a test.sh — the briefing's named exclusion
   criterion). conformance.sh runs `bash lib/ocaml/test.sh -v`, scrapes its human-readable
   ok/FAIL lines, and re-classifies each test into suites via bash description-matching