feat(codeagent): update Dockerfiles and refactor session management for improved container handling

[go-wyvern]

No description provided.

[Copilot]

Pull Request Overview

This PR enhances session handling by adding a dedicated SessionPath, refactors in-memory session management to use string keys, and updates Docker integrations to run containers persistently rather than interactively.

• Add SessionPath to Workspace and create a corresponding directory.
• Change SessionManager map keys from int to string to support multi-field identifiers.
• Update Gemini and Claude Docker runners to launch detached containers and adjust Dockerfiles to use tail -f /dev/null.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pkg/models/workspace.go	Added SessionPath field to track per-session directory.
internal/workspace/manager.go	Initialize and create sessionPath, include it in returned struct.
internal/code/session.go	Switched session map to map[string]Code and updated key logic.
internal/code/gemini_docker.go	Removed interactive pipes, added container naming, and exec-based prompts.
internal/code/claude.go	Mirror Gemini changes for Claude containers.
Dockerfile.gemini & Dockerfile.claude	Changed CMD to keep containers alive by tailing /dev/null.

Comments suppressed due to low confidence (3)

internal/workspace/manager.go:170

• New sessionPath creation logic should be covered by unit tests to ensure directory creation errors are handled correctly.

	sessionPath := filepath.Join(m.baseDir, session)

internal/code/session.go:26

• The Workspace type has no PullRequest field, so referencing workspace.PullRequest will not compile. Consider using workspace.Issue.GetNumber() or adding a PullRequest field.

	key := fmt.Sprintf("%s-%d", workspace.Repository, workspace.PullRequest.GetNumber())

internal/code/gemini_docker.go:24

• Using workspace.Repository directly in container names may introduce invalid characters (e.g., slashes). Sanitize or replace non-alphanumeric characters.

	containerName := fmt.Sprintf("gemini-%s-%d", workspace.Repository, workspace.PullRequest.GetNumber())