refactor(cli): remove obsolete workflow commands

harness/tests/fixtures/approved_cli_surface.json

@@ -0,0 +1,85 @@
+{
+  "maintained": [
+    "cte info",
+    "cte next",
+    "cte plan",
+    "cte save",
+    "cte test",
+    "datamart generate",
+    "db ping",
+    "decision add",
+    "decision add-batch",
+    "decision add-join-set",
+    "memory promote",
+    "memory save-one",
+    "memory search",
+    "memory solved-index",
+    "memory solved-search",
+    "ollama ensure",
+    "phase advance",
+    "phase meta",
+    "phase reopen",
+    "phase show",
+    "preprocess dwh",
+    "preprocess evidence",
+    "schema check",
+    "schema columns",
+    "schema introspect",
+    "schema render",
+    "schema suggest-fks",
+    "search find",
+    "search pack",
+    "session archive",
+    "session check",
+    "session close",
+    "session delete",
+    "session documents",
+    "session fail",
+    "session finalize",
+    "session list",
+    "session migrate",
+    "session new",
+    "session preferences get",
+    "session preferences set",
+    "session reopen",
+    "session retrieval-pack",
+    "session set-group",
+    "session set-name",
+    "session set-question",
+    "session set-schema-linking",
+    "session show",
+    "session sync-schema-linking",
+    "session unarchive",
+    "sql export",
+    "sql preview",
+    "sql set-final",
+    "sql validate",
+    "vector index-schema"
+  ],
+  "enhanced": [
+    "config check",
+    "db fetch-ca",
+    "doctor",
+    "memory delete",
+    "memory index",
+    "memory list",
+    "memory show",
+    "memory update"
+  ],
+  "erased": [
+    "cte list",
+    "decision list",
+    "decision retract",
+    "evidence extract",
+    "evidence index",
+    "formula list",
+    "formula save",
+    "lsh build",
+    "lsh query",
+    "memory clear",
+    "memory migrate",
+    "sql explain",
+    "sql save",
+    "vector init"
+  ]
+}