feat: add external diagram view#49
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External diagram view
When the diagram too crowded, i need zoom.
Adds a way to render the diagram at the cursor and open the image with the system default app (vim.ui.open), using the same render path as hover but without the tab / image.nvim preview.
What changed
•
open_diagram_externally_at_cursor(hover.lua): resolves the diagram under the cursor, runs the matching renderer, waits for async jobs when needed (e.g. Mermaid), then opens the output file.• Public API:
open_diagram_externallyon the plugin module (init.lua) calls the above.• Small cleanup: drop unused col in get_diagram_at_cursor, minor whitespace / hover hint formatting.
Usage
Call require("diagram").open_diagram_externally() (e.g. from a keymap) when you want the PNG opened in Preview / your OS viewer instead of inside Neovim.