review(p9-fb-25-task1): fix kebab-app test references to removed WorkspaceCfg.include

reviewer-flagged: task 1 missed test files using cfg.workspace.include.

- crates/kebab-app/tests/common/mod.rs: SourceScope literal switched
  to ..Default::default().
- crates/kebab-app/tests/image_pipeline.rs (×3): drop dead-no-op
  cfg.workspace.include.push(...) calls; comment explains removal.
- crates/kebab-app/tests/pdf_pipeline.rs: same treatment.

Pre-fb-25 these pushes were no-ops (include was dead config field
not enforced anywhere). Removal is purely mechanical.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/kebab-app/tests/image_pipeline.rs

@@ -33,10 +33,8 @@ fn write_red_png(root: &Path, name: &str) -> std::path::PathBuf {
 
 fn cfg_with_image_pipeline(env: &TestEnv, mock_endpoint: &str) -> Config {
     let mut cfg = env.config.clone();
-    // Ensure image assets are scanned.
-    cfg.workspace
-        .include
-        .push("**/*.png".to_string());
+    // p9-fb-25: workspace.include removed; extension routing is now
+    // handled by extractor matching alone (no config knob).
     cfg.image.ocr.enabled = true;
     cfg.image.ocr.endpoint = Some(mock_endpoint.to_string());
     cfg.image.ocr.model = "vision-mock:1b".to_string();
@@ -261,7 +259,8 @@ async fn image_indexed_with_filename_when_ocr_and_caption_disabled() {
     let env = TestEnv::lexical_only();
     write_red_png(&env.workspace_root, "raw.png");
     let mut cfg = env.config.clone();
-    cfg.workspace.include.push("**/*.png".to_string());
+    // p9-fb-25: workspace.include removed; extension routing is now
+    // handled by extractor matching alone (no config knob).
     cfg.image.ocr.enabled = false;
     cfg.image.caption.enabled = false;
 
@@ -326,7 +325,8 @@ async fn garbage_png_increments_errors_counter_exactly_once() {
     )
     .expect("write garbage fixture");
     let mut cfg = env.config.clone();
-    cfg.workspace.include.push("**/*.png".to_string());
+    // p9-fb-25: workspace.include removed; extension routing is now
+    // handled by extractor matching alone (no config knob).
     cfg.image.ocr.enabled = false;
     cfg.image.caption.enabled = false;