chore: import upstream snapshot with attribution

examples/provider-replicate/comprehensive/README.md

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+# provider-replicate/comprehensive (Comprehensive Replicate Testing)
+
+You can run this example with:
+
+```bash
+npx promptfoo@latest init --example provider-replicate/comprehensive
+cd provider-replicate/comprehensive
+```
+
+This example demonstrates the full capabilities of the Replicate provider in promptfoo, including text generation and image generation.
+
+## Environment Variables
+
+This example requires:
+
+- `REPLICATE_API_TOKEN` - Your Replicate API key (get one at https://replicate.com/account/api-tokens)
+
+Set this in your environment:
+
+```bash
+export REPLICATE_API_TOKEN=r8_your_api_token_here
+```
+
+## Features Demonstrated
+
+### 1. Text Generation with Llama 3
+
+- Uses Meta's Llama 3 8B Instruct model
+- Configurable temperature, token limits, and sampling parameters
+- Demonstrates creative writing and explanatory tasks
+
+### 2. Image Generation with SDXL
+
+- Uses Stable Diffusion XL for high-quality image generation
+- Custom resolution settings (512x512 for faster generation)
+- Tests both photorealistic and artistic styles
+
+## Running the Example
+
+1. Set your Replicate API token:
+
+   ```bash
+   export REPLICATE_API_TOKEN=your_token_here
+   ```
+
+2. Run the evaluation:
+
+   ```bash
+   promptfoo eval
+   ```
+
+3. View the results:
+   ```bash
+   promptfoo view
+   ```
+
+## Understanding the Configuration
+
+### Provider Configuration
+
+```yaml
+providers:
+  - id: replicate:meta/meta-llama-3-8b-instruct
+    config:
+      temperature: 0.5 # Balanced creativity
+      max_new_tokens: 200 # Limit response length
+```
+
+### Assertion Types
+
+The example uses various assertion types:
+
+- `contains-any`: Checks for specific keywords
+- `javascript`: Custom validation logic
+- `is-valid-openai-image-generation-response`: Validates image URLs
+
+## Customization Ideas
+
+1. **Try Different Models**:
+   - Text: `replicate:meta/meta-llama-3-70b-instruct` (larger, more capable)
+   - Images: `replicate:image:playgroundai/playground-v2.5-1024px-aesthetic`
+
+2. **Adjust Parameters**:
+   - Increase `temperature` for more creative outputs
+   - Change image dimensions for different aspect ratios
+   - Modify `num_inference_steps` for quality vs speed tradeoff
+
+3. **Add More Tests**:
+   - Code generation tasks
+   - Language translation
+   - Style transfer for images
+   - Different artistic styles
+
+## Troubleshooting
+
+- **Rate Limits**: Replicate has rate limits; add delays between tests if needed
+- **Timeouts**: Large models may take 30-60 seconds; the provider handles polling automatically
+- **Image URLs**: Generated images are temporary; save them if needed for long-term use
+
+## Cost Considerations
+
+- Text generation: ~$0.0005 per 1K tokens (Llama 3 8B)
+- Image generation: ~$0.012 per image (SDXL)
+- Check current pricing at https://replicate.com/pricing

examples/provider-replicate/comprehensive/promptfooconfig.yaml

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+# yaml-language-server: $schema=https://promptfoo.dev/config-schema.json
+description: Comprehensive Replicate provider testing
+
+prompts:
+  - '{{task}}'
+
+providers:
+  # Text generation with Llama 4
+  - id: replicate:meta/llama-4-scout-instruct
+    config:
+      temperature: 0.5
+      max_new_tokens: 200
+
+  # Image generation with SDXL
+  - id: replicate:image:stability-ai/sdxl:7762fd07cf82c948538e41f63f77d685e02b063e37e496e96eefd46c929f9bdc
+    config:
+      width: 512
+      height: 512
+      num_inference_steps: 25
+
+tests:
+  # Text generation tests
+  - vars:
+      task: 'Write a haiku about mountains'
+    assert:
+      - type: contains-any
+        value: ['mountain', 'peak', 'high', 'snow', 'summit']
+      - type: javascript
+        value: |
+          // Basic check for haiku-like structure
+          const lines = output.split('\n').filter(line => line.trim().length > 0);
+          return {
+            pass: lines.length >= 3,
+            reason: `Found ${lines.length} lines, expected at least 3 for haiku`
+          };
+        provider: replicate:meta/llama-4-scout-instruct
+
+  - vars:
+      task: 'Explain quantum computing in one paragraph'
+    assert:
+      - type: contains-any
+        value: ['quantum', 'qubit', 'superposition', 'entanglement']
+      - type: javascript
+        value: 'output.length > 100'
+        provider: replicate:meta/llama-4-scout-instruct
+
+  # Image generation test
+  - vars:
+      task: 'A serene mountain landscape at sunset with a lake reflection'
+    assert:
+      - type: javascript
+        value: |
+          // Check that the output contains markdown image format
+          return output && typeof output === 'string' && output.includes('![') && output.includes('](http');
+        provider: replicate:image:stability-ai/sdxl:7762fd07cf82c948538e41f63f77d685e02b063e37e496e96eefd46c929f9bdc
+
+  - vars:
+      task: 'Abstract geometric art with vibrant colors and sharp angles'
+    assert:
+      - type: javascript
+        value: |
+          // Check that the output contains markdown image format
+          return output && typeof output === 'string' && output.includes('![') && output.includes('](http');
+        provider: replicate:image:stability-ai/sdxl:7762fd07cf82c948538e41f63f77d685e02b063e37e496e96eefd46c929f9bdc