Add Seriatim normalize adapter support

internal/adapters/seriatim/runner.go

@@ -1,4 +1,4 @@
-// Package seriatim declares the adapter contract for transcript merge/trim execution.
+// Package seriatim declares the adapter contract for transcript merge/normalize/trim execution.
 package seriatim
 
 import (
@@ -6,9 +6,10 @@ import (
 	"time"
 )
 
-// Runner is the adapter boundary for seriatim merge/trim invocations.
+// Runner is the adapter boundary for seriatim merge/normalize/trim invocations.
 type Runner interface {
 	Run(ctx context.Context, req MergeRequest) (MergeResult, error)
+	Normalize(ctx context.Context, req NormalizeRequest) (NormalizeResult, error)
 	Trim(ctx context.Context, req TrimRequest) (TrimResult, error)
 }
 
@@ -38,6 +39,33 @@ type MergeResult struct {
 	Metadata             map[string]any
 }
 
+// NormalizeRequest describes a seriatim normalize invocation.
+type NormalizeRequest struct {
+	Binary               string
+	InputTranscriptPath  string
+	OutputNormalizedPath string
+	OutputSchema         string
+	ReportPath           string
+	StdoutLogPath        string
+	StderrLogPath        string
+	GeneratedConfigPath  string
+	Timeout              time.Duration
+}
+
+// NormalizeResult describes a normalize output.
+type NormalizeResult struct {
+	OutputNormalizedPath string
+	ReportPath           string
+	StdoutLogPath        string
+	StderrLogPath        string
+	GeneratedConfigPath  string
+	ExitCode             int
+	Duration             time.Duration
+	InvokedBinary        string
+	OutputSchema         string
+	Metadata             map[string]any
+}
+
 // TrimRequest describes a seriatim trim invocation.
 type TrimRequest struct {
 	Binary              string