docs: remove podcast maker binary screenshot assets

docs-site/docs/features/podcast-maker/api-reference.md

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+# Podcast Maker API Reference
+
+This reference summarizes key endpoint groups exposed by the Podcast API domain.
+
+## Endpoint Map
+
+```mermaid
+flowchart TD
+    A[/api/podcast]
+    A --> P[projects.py]
+    A --> AN[analysis.py]
+    A --> R[research.py]
+    A --> S[script.py]
+    A --> AU[audio.py]
+    A --> V[video.py]
+    A --> I[images.py]
+    A --> AV[avatar.py]
+    A --> D[dubbing.py]
+
+    P --> P1[Create project]
+    P --> P2[List project history]
+    AN --> AN1[Run episode analysis]
+    R --> R1[Generate/select queries]
+    S --> S1[Create/update script]
+    AU --> AU1[Render audio]
+    V --> V1[Render video]
+    I --> I1[Generate supporting images]
+    AV --> AV1[Configure presenter avatar]
+    D --> D1[Voice dubbing / localization]
+```
+
+## Endpoint Families
+
+- **Project endpoints**: lifecycle operations for episode containers and history.
+- **Analysis endpoints**: diagnostic scoring and recommendation extraction.
+- **Research & script endpoints**: query planning, source grounding, and script management.
+- **Media endpoints**: audio/video render, image generation, avatar personalization, and dubbing.