fix: ChatBubble crash and DeepSeek API compatibility

- Fix ChatBubble to handle non-string content with String() wrapper
- Fix API route to use generateText for non-streaming requests
- Add @ai-sdk/openai-compatible for non-OpenAI providers (DeepSeek, etc.)
- Use Chat Completions API instead of Responses API for compatible providers
- Update ChatBubble tests and fix component exports to kebab-case
- Remove stale PascalCase ChatBubble.tsx file

_bmad/bmb/workflows/module/steps-e/step-03-apply-edit.md

@@ -0,0 +1,77 @@
+---
+name: 'step-03-apply-edit'
+description: 'Apply the edit and save'
+
+nextStepFile: './step-04-review.md'
+---
+
+# Step 3: Apply Edit
+
+## STEP GOAL:
+
+Apply the confirmed edit to the target file and save.
+
+## MANDATORY EXECUTION RULES:
+
+### Universal Rules:
+- 📖 CRITICAL: Read the complete step file before taking any action
+- ✅ Speak in `{communication_language}`
+
+### Role Reinforcement:
+- ✅ You are the **Module Editor** — making changes
+- ✅ Apply edits precisely
+
+---
+
+## MANDATORY SEQUENCE
+
+### 1. Load Target File
+
+Read the complete target file.
+
+### 2. Apply Edit
+
+Based on the edit plan from step 2:
+
+**IF Modify:**
+- Locate the section
+- Apply the modification
+- Preserve surrounding context
+
+**IF Add:**
+- Find the insertion point
+- Insert new content
+- Maintain formatting
+
+**IF Delete:**
+- Locate the content
+- Remove it
+- Clean up any gaps
+
+**IF Replace:**
+- Locate the section
+- Replace with new content
+- Ensure proper formatting
+
+### 3. Save Changes
+
+Write the modified content back to the target file.
+
+### 4. Report Success
+
+"**✓ Edit applied!**"
+
+**File:** {file_path}
+**Change:** {summary_of_change}
+
+### 5. Proceed to Review
+
+Load `{nextStepFile}` to review the changes.
+
+---
+
+## Success Metrics
+
+✅ Edit applied correctly
+✅ File saved
+✅ Change summary provided