Add EnapterEL41ErrorCodes dictionary for electrolyser error code management

[Copilot]

Implements a dictionary to store Enapter EL4.1 Electrolyser warning, error, and fatal error codes keyed by code identifier, sourced from https://handbook.enapter.com/electrolyser/el41/#warning-error-and-fatal-error-codes.

Implementation

• EnapterEL41ErrorCodes.cs: Static class with IReadOnlyDictionary<string, string> for thread-safe error code storage

  • GetDescription(code): Returns description or null
  • IsValidCode(code): Validates code existence
  • GetAllCodes(): Returns all available codes

• EnapterEL41ErrorCodesTests.cs: NUnit tests covering null/empty/invalid input handling

• EnapterEL41ErrorCodes.README.md: Population instructions and usage examples

Usage

// Check and retrieve error descriptions
if (EnapterEL41ErrorCodes.IsValidCode("W1"))
{
    string description = EnapterEL41ErrorCodes.GetDescription("W1");
    Console.WriteLine($"Warning W1: {description}");
}

// Enumerate all codes
foreach (var code in EnapterEL41ErrorCodes.GetAllCodes())
{
    Console.WriteLine($"{code}: {EnapterEL41ErrorCodes.GetDescription(code)}");
}

Note

Dictionary structure is complete but unpopulated. The referenced website was inaccessible during implementation. Populate by adding entries to the dictionary initializer in format: { "CODE", "Description" }. See README for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• handbook.enapter.com
  • Triggering command: /usr/bin/curl curl -L REDACTED (dns block)
  • Triggering command: /usr/bin/curl curl -s -L REDACTED (dns block)
  • Triggering command: /usr/bin/python3 python3 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Please create a csharp dictionary using the "Code" as the key from the "Warning, Error and Fatal Error Codes" table shown on this website: https://handbook.enapter.com/electrolyser/el41/#warning-error-and-fatal-error-codes

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