Implement Lambda Labs provider improvements based on dev-plane patterns

[devin-ai-integration]

Implement Lambda Labs provider improvements based on dev-plane patterns

Summary

This PR implements significant improvements to the brevdev/cloud repository's Lambda Labs provider by adopting patterns from the mature brevdev/dev-plane implementation. The changes focus on five key areas: better error handling, idempotent SSH key management, improved instance type processing, enhanced GPU parsing, and better data mapping.

Key Changes:

• New error handling system (errors.go): Maps Lambda Labs API errors to standardized v1 errors with capacity/quota-specific error classification
• Idempotent SSH key management: Adds retry logic with "name must be unique" tolerance to handle concurrent SSH key creation
• Enhanced GPU parsing: Implements regex-based parsing to extract GPU count, memory, and network details from description strings
• Instance type filtering: Filters out "gh" instance types and improves availability logic
• Improved data mapping: Adds firewall rules generation, volume type/disk size mapping, and comprehensive status conversion

All existing tests pass (47/47) and the improvements maintain backward compatibility while adding robustness.

Review & Testing Checklist for Human

⚠️ High Priority Items (3):

• Test error handling with real Lambda Labs API: Verify that handleLLErrToCloudErr correctly maps actual API error responses without masking critical error details
• Validate GPU parsing with live data: Test the regex patterns in parseGPUFromDescription against real GPU descriptions from Lambda Labs API to ensure they handle all formats correctly
• Verify SSH key idempotency: Test the addSSHKeyIdempotent function with concurrent requests to ensure it handles race conditions and the "name must be unique" error properly

---

Diagram

%%{ init : { "theme" : "default" }}%%
flowchart TD
    subgraph "Lambda Labs Provider"
        Client["internal/lambdalabs/v1/<br/>client.go"]:::context
        Instance["internal/lambdalabs/v1/<br/>instance.go"]:::major-edit
        InstanceType["internal/lambdalabs/v1/<br/>instancetype.go"]:::major-edit
        Errors["internal/lambdalabs/v1/<br/>errors.go"]:::major-edit
        Capabilities["internal/lambdalabs/v1/<br/>capabilities.go"]:::context
    end
    
    subgraph "Core SDK"
        V1Types["pkg/v1/<br/>instance.go, errors.go"]:::context
    end
    
    subgraph "Generated API Client"  
        GenAPI["internal/lambdalabs/gen/<br/>lambdalabs/api_default.go"]:::context
    end
    
    Instance --|"uses"| Errors
    Instance --|"calls"| GenAPI
    InstanceType --|"uses"| Errors
    Instance --|"maps to"| V1Types
    InstanceType --|"maps to"| V1Types
    
    subgraph Legend
        L1["Major Edit"]:::major-edit
        L2["Minor Edit"]:::minor-edit  
        L3["Context/No Edit"]:::context
    end

classDef major-edit fill:#90EE90
classDef minor-edit fill:#87CEEB
classDef context fill:#F5F5F5

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Notes

• Dev-plane patterns adopted: This implementation follows the mature patterns from brevdev/dev-plane but adapted for the cloud repo's modular architecture
• No breaking changes: All existing functionality is preserved while adding new robustness features
• Test coverage: All 47 existing tests pass, including new tests for GPU parsing functionality
• Session details: Requested by Alec Fong (@theFong) - https://app.devin.ai/sessions/60c73dc7c7d64105ad8486f9b94bcde8

Risk areas to watch:

• The error mapping logic in errors.go could potentially categorize errors incorrectly
• GPU parsing regex patterns may not handle all possible Lambda Labs GPU description formats
• Instance type filtering might exclude valid types if Lambda Labs changes their naming conventions

[devin-ai-integration]

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