Cleaned up and removed legacy configuration surfaces

internal/config/load_validate_test.go

@@ -27,8 +27,6 @@ seriatim:
   binary: seriatim
 audita:
   binary: audita
-analyzer:
-  timeout: 20m
 notification:
   timeout: 15s
 `,
@@ -48,8 +46,6 @@ inputs:
   root: /tmp/narratio
 whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
-analyzer:
-  timeout: 20m
 notification:
   timeout: 15s
 `,
@@ -67,8 +63,6 @@ inputs:
 			name: "workspace root defaults when omitted",
 			pipelineYAML: `whisperx:
   transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
-analyzer:
-  timeout: 20m
 notification:
   timeout: 15s
 `,
@@ -97,6 +91,24 @@ inputs:
 `,
 			wantLoadErr: "pipeline file",
 		},
+		{
+			name: "legacy analyzer section fails strict decode",
+			pipelineYAML: `workspace:
+  root: /tmp/narratio
+whisperx:
+  transcribe_url: https://transcription.ai.rakestrawhome.com/transcribe
+analyzer:
+  timeout: 20m
+`,
+			sessionYAML: `session_id: 2026-05-03
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`,
+			wantLoadErr: "strict decode failed",
+		},
 		{
 			name: "unknown whisperx field fails",
 			pipelineYAML: `workspace: