Add 10-character error codes to system errors

[Copilot]

System errors lacked human-readable error codes for support and debugging. Player errors already have 7-character alphanumeric codes; system errors now get 10-character codes using the same generation pattern.

Changes

• Schema: Added errorCode varchar(10) with unique index to SurfCoreSystemErrorTable
• Data model: Added errorCode: String to SurfCoreSystemError
• Service: Added generateCode() (62^10 possible combinations) and getError(code: String)
• Repository: Generate codes on insert, preserve on update, support code-based queries
• Commands: Added /coreerror system viewCode <code> subcommand to look up errors by code
• UI: Updated error list pagination to display error codes instead of UUIDs
• Logging: Error codes are now logged alongside UUIDs in GlobalErrorHandler

Error codes are case-sensitive alphanumeric (0-9, a-z, A-Z). Database unique constraint prevents collisions.

// Generated error codes
"bSMRsZqeod"  // 10 chars
"LsGOUJdpk3"
"W9vnMbJD2K"

// Retrieve by code
val error = surfCoreSystemErrorService.getError("bSMRsZqeod")

// View in command
/coreerror system viewCode bSMRsZqeod

Error codes appear in server logs when errors occur:

This error has been logged with code: bSMRsZqeod (ID: 123e4567-e89b-12d3-a456-426614174000)

[!WARNING]

Original prompt

Please add a error code like in the player error system for system errors, code should be 10 char long, every letter, case sensitive and numbers

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[TheBjoRedCraft]

@copilot please use the errorcode in the command and in the log to identifythe error

[Copilot]

@copilot please use the errorcode in the command and in the log to identifythe error

Done! System errors now use error codes throughout:

In logs: Error codes are logged alongside UUIDs:

This error has been logged with code: bSMRsZqeod (ID: 123e4567-e89b-12d3-a456-426614174000)

In commands:

• /coreerror system viewCode <code> - Look up errors by code (like player errors)
• /coreerror system list - Shows error codes instead of UUIDs in the list
• Error details view shows both error code and UUID

Commit: 102b407