fix: simplify HSDD example to fix Gradio click issue (P2)

The third example wasn't filling the chat box when clicked.
Likely caused by parentheses in "HSDD (Hypoactive Sexual Desire Disorder)".

Fix: Remove abbreviation and parentheses - just use full name.
Also more readable since HSDD was getting cut off anyway.

docs/bugs/P2_GRADIO_EXAMPLE_NOT_FILLING.md

@@ -0,0 +1,67 @@
+# P2 Bug Report: Third Example Not Filling Chat Box
+
+## Status
+- **Date:** 2025-11-29
+- **Priority:** P2 (UX issue)
+- **Component:** `src/app.py` - Gradio examples
+
+---
+
+## Symptoms
+
+When clicking the third example in the Gradio UI:
+- **Example 1** (female libido): ✅ Fills chat box correctly
+- **Example 2** (ED alternatives): ✅ Fills chat box correctly
+- **Example 3** (HSDD testosterone): ❌ Does NOT fill chat box
+
+### User Experience
+User clicks example → nothing happens → confusion
+
+---
+
+## Root Cause Hypothesis
+
+The third example contains parentheses and an abbreviation:
+```
+"Testosterone therapy for HSDD (Hypoactive Sexual Desire Disorder)?"
+```
+
+Possible causes:
+1. **Parentheses** - Gradio may have parsing issues with `(...)` in example text
+2. **Text length** - When expanded, this is the longest example
+3. **Special characters** - The combination of abbreviation + parenthetical may confuse Gradio's example caching
+
+---
+
+## The Fix
+
+Simplify the example text - expand the abbreviation and remove parentheses:
+
+```python
+# Before (broken)
+"Testosterone therapy for HSDD (Hypoactive Sexual Desire Disorder)?"
+
+# After (fixed)
+"Testosterone therapy for Hypoactive Sexual Desire Disorder?"
+```
+
+This:
+1. Removes problematic parentheses
+2. Makes the text more readable (no cut-off abbreviation)
+3. Users don't need to know what HSDD stands for
+
+---
+
+## Test Plan
+
+- [ ] Change example text in `src/app.py`
+- [ ] Deploy to HuggingFace Space
+- [ ] Verify all 3 examples fill chat box correctly
+- [ ] `make check` passes
+
+---
+
+## Related
+
+- Gradio ChatInterface example caching behavior
+- Similar to P0 example caching crash (but different manifestation)

src/app.py

@@ -261,7 +261,7 @@ def create_demo() -> tuple[gr.ChatInterface, gr.Accordion]:
                 None,
             ],
             [
-                "Testosterone therapy for HSDD (Hypoactive Sexual Desire Disorder)?",
+                "Testosterone therapy for Hypoactive Sexual Desire Disorder?",
                 "simple",
                 None,
                 None,