feat(java): add created_at support to ls-remote --json

[jdx]

Summary

• Implement _list_remote_versions_with_info() for the Java backend to support release timestamps
• Add created_at field to JavaMetadata struct (optional)
• Timestamps will automatically appear once the mise-java API is updated to include created_at

Background

The mise-java database already stores created_at and modified_at timestamps for each release, but these aren't currently exposed in the API response. This PR adds the infrastructure on the mise side so that once the API is updated to include the field, it will automatically work.

API Investigation

Checked the mise-java repository:

• Database schema (sql/schema.sql) has created_at and modified_at fields
• The JvmData struct just needs to add the field
• Related: may need a small PR to mise-java to expose the timestamp

Test plan

• Verified mise ls-remote java --json works correctly
• Field will be null until mise-java API is updated
• All existing functionality preserved

🤖 Generated with Claude Code

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Note

Adds created_at timestamps to Java remote version listings by returning VersionInfo from a new _list_remote_versions_with_info and extending JavaMetadata.

• Backend (Java):
  • Remote versions with metadata: Implement _list_remote_versions_with_info returning Vec<VersionInfo> (includes version and optional created_at).
    • Update _list_remote_versions to derive plain versions from this metadata.
    • Ensure uniqueness by version using unique_by.
  • Metadata model: Add optional created_at field to JavaMetadata and propagate it into VersionInfo.
  • Imports: Use VersionInfo from crate::backend.

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[Copilot]

Pull request overview

This PR adds infrastructure support for displaying release timestamps in mise ls-remote java --json output by implementing _list_remote_versions_with_info() and adding a created_at field to the JavaMetadata struct. The timestamps will automatically populate once the mise-java API is updated to include this field in its responses.

Key changes:

• Implemented _list_remote_versions_with_info() method for the Java backend
• Added optional created_at field to JavaMetadata struct
• Refactored _list_remote_versions() to delegate to the new info method

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[github-actions]

Hyperfine Performance

mise x -- echo

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.12.6 x -- echo	21.1 ± 0.6	20.0	28.4	1.00
mise x -- echo	22.1 ± 0.9	20.3	31.9	1.04 ± 0.05

mise env

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.12.6 env	20.7 ± 0.7	19.7	31.2	1.00
mise env	21.3 ± 0.7	19.8	23.0	1.03 ± 0.05

mise hook-env

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.12.6 hook-env	20.9 ± 0.4	20.2	24.5	1.00
mise hook-env	21.6 ± 0.5	20.2	23.2	1.03 ± 0.03

mise ls

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.12.6 ls	17.7 ± 0.4	16.4	18.8	1.00
mise ls	18.5 ± 0.5	17.3	19.9	1.05 ± 0.04

xtasks/test/perf

Command	mise-2025.12.6	mise	Variance
install (cached)	112ms	111ms	+0%
ls (cached)	66ms	67ms	-1%
bin-paths (cached)	74ms	74ms	+0%
task-ls (cached)	451ms	452ms	+0%