Add render artifact model, config, and Seriatim adapter contracts

internal/adapters/seriatim/runner.go

@@ -1,4 +1,4 @@
-// Package seriatim declares the adapter contract for transcript merge/normalize/trim execution.
+// Package seriatim declares the adapter contract for transcript merge/normalize/trim/render execution.
 package seriatim
 
 import (
@@ -6,11 +6,12 @@ import (
 	"time"
 )
 
-// Runner is the adapter boundary for seriatim merge/normalize/trim invocations.
+// Runner is the adapter boundary for seriatim merge/normalize/trim/render 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)
+	Render(ctx context.Context, req RenderRequest) (RenderResult, error)
 }
 
 // MergeRequest describes a seriatim merge invocation.
@@ -90,3 +91,33 @@ type TrimResult struct {
 	KeepSelector        string
 	Metadata            map[string]any
 }
+
+// RenderRequest describes a seriatim render invocation.
+type RenderRequest struct {
+	Binary              string
+	InputTranscriptPath string
+	OutputRenderedPath  string
+	Format              string
+	Title               string
+	IncludeTimestamps   bool
+	IncludeSegmentIDs   bool
+	IncludeMetadata     bool
+	StdoutLogPath       string
+	StderrLogPath       string
+	GeneratedConfigPath string
+	Timeout             time.Duration
+}
+
+// RenderResult describes a render output.
+type RenderResult struct {
+	OutputRenderedPath  string
+	StdoutLogPath       string
+	StderrLogPath       string
+	GeneratedConfigPath string
+	ExitCode            int
+	Duration            time.Duration
+	InvokedBinary       string
+	Format              string
+	Title               string
+	Metadata            map[string]any
+}