Name testgen goldens analyze.json so editors highlight them as JSON

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y6XkyWnx7iJFEb8q3AnYps

Author: claude

internal/engine/clickhouse/testgen/README.md

@@ -69,11 +69,11 @@ whoever reads the output.
 ## Tests
 
 `testdata/<case>/` holds a `schema.sql`, `query.sql`, an optional
-`fixture.sql` and the expected `stdout.txt`. The test skips unless a binary is
+`fixture.sql` and the expected `analyze.json`. The test skips unless a binary is
 available.
 
 ```bash
 go run . install
 go test .
-go test . -update   # rewrite every stdout.txt
+go test . -update   # rewrite every analyze.json
 ```

…stgen/testdata/analyze_params/stdout.txt …gen/testdata/analyze_params/analyze.jsoninternal/engine/clickhouse/testgen/testdata/analyze_params/stdout.txt renamed to internal/engine/clickhouse/testgen/testdata/analyze_params/analyze.json internal/engine/clickhouse/testgen/testdata/analyze_params/stdout.txt renamed to internal/engine/clickhouse/testgen/testdata/analyze_params/analyze.json

@@ -9,11 +9,11 @@ import (
 	"testing"
 )
 
-var update = flag.Bool("update", false, "rewrite the expected stdout.txt of every case")
+var update = flag.Bool("update", false, "rewrite the expected analyze.json of every case")
 
 // TestAnalyze runs the CLI over each directory under testdata, which holds
 // the same files a sqlc analyze case does plus a fixture, and compares the
-// output with the committed stdout.txt. It needs the clickhouse binary and
+// output with the committed analyze.json. It needs the clickhouse binary and
 // skips when none is installed.
 func TestAnalyze(t *testing.T) {
 	if _, err := Locate(); err != nil {
@@ -36,7 +36,7 @@ func TestAnalyze(t *testing.T) {
 				t.Fatalf("%v\n%s", err, stderr.String())
 			}
 
-			golden := filepath.Join(dir, "stdout.txt")
+			golden := filepath.Join(dir, "analyze.json")
 			if *update {
 				if err := os.WriteFile(golden, stdout.Bytes(), 0o644); err != nil {
 					t.Fatal(err)