Glacier storage backend: configuration exists but no implementation

[wilke]

Summary

AWS Glacier is defined as a location type in the configuration structs but has no download or upload implementation.

Location

shock-server/conf/conf.go:50-52 - GlacierLocation struct defined

Configuration Struct

type GlacierLocation struct {
    Vault string
}

Missing Implementation

• No GlacierDownload() function
• No GlacierUpload() function
• Not referenced in FMOpen() switch statement
• Vault field is never used anywhere in the codebase

Impact

• Users may configure Glacier locations expecting them to work
• No error or warning when Glacier location is configured

Recommendation

Either implement Glacier support or remove the configuration struct to avoid confusion.

Priority

Low - backend not expected to work currently