v1.91.0

This release adds per-session markdown plan toolset support, extends instruction_file to accept multiple files, and includes several bug fixes and documentation updates.

What's New

• Adds a session_plan toolset alongside the existing plan toolset, providing per-session markdown plan storage
• Extends instruction_file to accept either a single string or a list of file paths, with contents concatenated when multiple paths are provided
• Adds support for a title field in POST /api/sessions to skip LLM title generation when a title is supplied

Bug Fixes

• Fixes a data race in stalledStream.Close by replacing an unguarded closed bool field with sync.Once
• Fixes instruction_file to omit empty values and drop empty-string list entries

Technical Changes

• Redesigns the TUI sidebar agents panel to use uniform two-line entries for all agents via a single renderAgentLine function
• Computes badge column width once in agentInfo in the sidebar
• Extracts a readInstructionFiles helper with deferred root.Close
• Adds t.Parallel() to isolated unit tests across multiple packages
• Corrects a stale doc comment and restores alignment assertion in effort_gauge_test
• Updates documentation for limit_large_tool_results always-on builtin, the title field in POST /api/sessions, and model hook working_dir and env behaviour

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What's Changed

• docs: update CHANGELOG.md for v1.90.0 by @docker-read-write[bot] in #3308
• feat(server): accept title in POST /api/sessions to skip LLM title generation by @zampani-docker in #3310
• fix: data race in stalledStream.Close using sync.Once by @dgageot in #3312
• test: enable t.Parallel() on isolated unit tests by @dgageot in #3311
• chore: bump direct Go dependencies by @dgageot in #3309
• refactor(sidebar): redesign agents panel to uniform two-line entries by @dgageot in #3307
• docs: sync /docs with recent merged PRs by @aheritier in #3313
• feat(session_plan): per-session markdown plan toolset alongside plan by @trungutt in #3305
• feat: allow instruction_file to accept a list of files by @dgageot in #3306

Full Changelog: v1.90.0...v1.91.0