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-04-review.md

@@ -0,0 +1,80 @@
+---
+name: 'step-04-review'
+description: 'Review changes and offer validation'
+
+nextStepFile: './step-05-confirm.md'
+validationWorkflow: '../steps-v/step-01-load-target.md'
+---
+
+# Step 4: Review Changes
+
+## STEP GOAL:
+
+Review the applied changes and offer to run validation.
+
+## 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** — confirming changes
+- ✅ Ensure user is satisfied
+
+---
+
+## MANDATORY SEQUENCE
+
+### 1. Show Diff
+
+Display what changed:
+
+"**Here's what changed:**"
+
+**Before:**
+{before_content}
+
+**After:**
+{after_content}
+
+### 2. Confirm Satisfaction
+
+"**Are you happy with this change?**"
+
+- **[Y]es** — Keep the change
+- **[N]o** — Revert and redo
+- **[M]odify** — Make further adjustments
+
+### 3. Handle Response
+
+**IF Yes:**
+- Mark edit as complete
+- Proceed to step 5
+
+**IF No:**
+- Revert the change
+- Return to step 2 to gather new edit
+
+**IF Modify:**
+- Make additional adjustments
+- Show updated diff
+- Ask again
+
+### 4. Offer Validation
+
+"**Would you like to run validation after this edit?**"
+
+- Validation can check for any issues introduced
+
+### 5. Proceed to Confirm
+
+Load `{nextStepFile}` to confirm completion.
+
+---
+
+## Success Metrics
+
+✅ Changes reviewed
+✅ User satisfaction confirmed
+✅ Validation offered