[gocanto]

Summary

• add a standalone Pane Navigation Hints plugin that shows effective pane navigation shortcuts in every Herdr pane border
• read the active [keys] configuration, compact repeated prefixes, omit unbound actions, and stay within Herdr's 80-character title limit
• refresh existing panes, decorate future panes through pane.created, and clear only the plugin's source-scoped metadata
• extend the private plugin core pane client with pane listing and typed source-scoped title reporting
• bump @oullin/herdr-plugin-core to 0.1.1 and document the new plugin in the catalogue

Impact

Users can see the directional, next/previous, and last-pane shortcuts before navigating. The plugin is display-only and remains independent of the tmux keybinding plugin. Clearing it restores normal pane titles without touching manual names or metadata owned by other sources.

Validation

• make format-all
• vp install --frozen-lockfile
• vp run ready — 23 test files and 78 tests passed
• linked against Herdr 0.7.4 and refreshed 10 existing panes
• verified a temporary split received the title through the pane.created hook
• verified clear restored the normal title, removed the temporary pane, and refreshed the live session again

[gemini-code-assist]

Code Review

This pull request introduces the pane-navigation-hints plugin to display live pane navigation shortcuts in Herdr pane borders, alongside supporting client updates in @oullin/herdr-plugin-core. The review feedback identifies several key areas for improvement: resolving formatting issues (such as leading + signs) when the prefix keybinding is empty, ensuring cross-platform compatibility when parsing configuration files on Windows, and preventing parsing bugs when handling single-character quoted values.

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