test: split cli tests from source tree (#216)

* feat(cli): define full warehouse dialect contract

* test(cli): keep dialect edge tests focused

* fix(cli): stabilize dialect contract foundation

* refactor(connectors): own read-only query preparation

* refactor(connectors): resolve dialects through registry

* refactor(connectors): keep concrete dialect classes internal

* chore(workspace): enforce dialect import boundary

* refactor(cli): resolve relationship dialect at scan boundary

* refactor(cli): use dialect display parsing for entity details

* refactor(cli): use dialect display parsing for warehouse catalog

* refactor(cli): use dialect SQL in relationship workflows

* test(cli): verify solid dialect scan workflow closure

* test: split cli tests from source tree

* refactor(cli): standardize BigQuery scope listing

* feat(sqlite): implement connector scope listing

* test(connectors): cover required table listing

* feat(cli): add warehouse driver registry

* refactor(setup): route scope discovery through driver registry

* refactor(cli): route local query execution through driver registry

* refactor(historic-sql): route dialect support through driver registry

* refactor(cli): test warehouse connections through driver registry

* fix(cli): close driver registry type export gaps

* Improve setup daemon diagnostics

* refactor(setup): centralize rail-prefixed diagnostics + query-history fallback

Extract errorMessage, writePrefixedLines, and flushPrefixedBufferedCommandOutput
into clack.ts so the setup wizard, managed daemons, and embedding/agent steps
share one rail-formatted writer. setup-databases.ts also adds a
"disable query history and retry" option when the schema-context build fails
and query history is the likely culprit, surfaced via a new
failed-query-history-unavailable status.

* fix(cli): carry catalog through the picker so BigQuery/Snowflake/SQL Server scope filters match

The setup picker's KtxTableListEntry was a 2-level { schema, name }, so
qualifiedTableId always wrote db.name into enabled_tables. When BigQuery,
Snowflake, or SQL Server later ran fast ingest, their introspect step filtered
the scope set with scopedTableNames(scope, { catalog: projectId|database, db })
— catalog was non-null on the introspect side but null in the scope refs, so
every entry was rejected, the live-database adapter staged zero table files,
and detect() failed with 'Adapter "live-database" did not recognize fetched
source output'.

Align the picker boundary with the canonical 3-level KtxTableRef:

- Add catalog: string | null to KtxTableListEntry.
- BigQuery/Snowflake/SQL Server listTables populate catalog from the
  resolved projectId / database; Postgres/MySQL/ClickHouse/SQLite set null.
- qualifiedTableId emits catalog.schema.name when catalog is non-null
  (resolveEnabledTables already accepts the 3-part shape) and
  schemasFromEnabledTables now goes through parseDottedTableEntry so it
  recovers the schema correctly from both 2-part and 3-part entries.
- Export parseDottedTableEntry from enabled-tables.ts (@internal) for picker
  reuse.

Update listTables expectations in all seven connector tests and the setup /
picker test fixtures. Add a picker regression test that covers the
catalog-bearing round-trip (save + refine).

* fix(cli): allow debug telemetry under opt-out env

scripts/check-boundaries.mjs

@@ -68,6 +68,13 @@ const contextProductionLlmBoundaryPatterns = [
   },
 ];
 
+const concreteDialectImportPatterns = [
+  /from\s+['"][^'"]*connectors\/[^'"]+\/dialect\.js['"]/,
+  /import\s*\(\s*['"][^'"]*connectors\/[^'"]+\/dialect\.js['"]\s*\)/,
+  /from\s+['"]\.\/dialect\.js['"]/,
+  /import\s*\(\s*['"]\.\/dialect\.js['"]\s*\)/,
+];
+
 function normalizePath(filePath) {
   return filePath.split(path.sep).join('/');
 }
@@ -99,6 +106,13 @@ function scansForContextProductionLlmBoundaries(relativePath) {
   return scansForLlmBoundaries(relativePath) && !isTestSource(relativePath);
 }
 
+function scansForConcreteDialectImportBoundaries(relativePath) {
+  return (
+    relativePath.startsWith('packages/cli/src/context/scan/') ||
+    /^packages\/cli\/src\/connectors\/[^/]+\/connector\.ts$/.test(relativePath)
+  );
+}
+
 function scansForForbiddenIdentifiers(relativePath) {
   return (isCodeSource(relativePath) && !isTestSource(relativePath)) || isRuntimeAsset(relativePath);
 }
@@ -151,6 +165,19 @@ export function scanFileContent(relativePath, content) {
     }
   }
 
+  if (scansForConcreteDialectImportBoundaries(normalizedPath)) {
+    for (const pattern of concreteDialectImportPatterns) {
+      if (pattern.test(content)) {
+        violations.push({
+          file: normalizedPath,
+          kind: 'dialect-boundary',
+          message:
+            'Forbidden concrete connector dialect import; use getDialectForDriver() from context/connections/dialects.ts',
+        });
+      }
+    }
+  }
+
   if (
     scansForForbiddenIdentifiers(normalizedPath) &&
     !skipsIdentifierScan(normalizedPath) &&