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

packages/cli/src/telemetry/index.ts

@@ -55,6 +55,10 @@ const emittedProjectSnapshots = new Set<string>();
 const MCP_SAMPLE_RATE = 0.1 as const;
 let mcpSampled: boolean | undefined;
 
+function telemetryDebugEnabled(): boolean {
+  return process.env.KTX_TELEMETRY_DEBUG === '1';
+}
+
 export function shouldEmitMcpTelemetry(): boolean {
   mcpSampled ??= Math.random() < MCP_SAMPLE_RATE;
   return mcpSampled;
@@ -71,19 +75,21 @@ export async function emitTelemetryEvent<Name extends TelemetryEventName>(input:
   packageInfo?: KtxCliPackageInfo;
   projectDir?: string;
 }): Promise<void> {
+  const debug = telemetryDebugEnabled();
   const identity = await loadTelemetryIdentity({
     stdoutIsTTY: input.io.stdout.isTTY === true,
     stderr: input.io.stderr,
     env: process.env,
   });
 
-  if (!identity.enabled || !identity.installId) {
+  if ((!identity.enabled || !identity.installId) && !debug) {
     return;
   }
 
   const packageInfo = input.packageInfo ?? getKtxCliPackageInfo();
+  const installId = identity.installId ?? 'debug';
 
-  const projectId = input.projectDir ? computeTelemetryProjectId(identity.installId, input.projectDir) : undefined;
+  const projectId = input.projectDir ? computeTelemetryProjectId(installId, input.projectDir) : undefined;
   await trackTelemetryEvent({
     event: buildTelemetryEvent(
       input.name,
@@ -93,7 +99,7 @@ export async function emitTelemetryEvent<Name extends TelemetryEventName>(input:
       }),
       input.fields,
     ),
-    distinctId: identity.installId,
+    distinctId: installId,
     projectId,
     env: process.env,
     stderr: input.io.stderr,