[plugins] nvim-treesitter-context, todo-comments.nvim, vim-illuminate — three low-weight additions

[stanfish06]

What

Three plugins that complement the existing setup with zero overlap against already-installed plugins.

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1. nvim-treesitter-context

Repo: https://github.com/nvim-treesitter/nvim-treesitter-context

Shows the current function/class/block header as a sticky line at the top of the window while scrolling through long files.

Rationale tied to existing config: The config already has a custom scopeline.lua that draws treesitter-based scope brackets at the cursor position, and snacks.nvim indent chunks. nvim-treesitter-context complements both by keeping the enclosing scope name visible at the top of the buffer while scrolling — the gap these two don't fill. It uses the same treesitter queries already installed via TSSync, so there's no extra grammar dependency.

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2. todo-comments.nvim

Repo: https://github.com/folke/todo-comments.nvim

Highlights TODO, FIXME, HACK, NOTE, BUG, WARN comment markers with distinct colors and provides a quickfix list of all such markers in the project.

Rationale tied to existing config: The config uses quickfix heavily: :Compile populates it, <leader>co/<leader>cc open/close it, and quicker.nvim improves its UI. todo-comments.nvim adds a :TodoQuickFix command that integrates directly into this workflow. Its fzf integration (:TodoFzfLua) also slots into the existing fzf-lua setup via <leader>/.

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3. vim-illuminate

Repo: https://github.com/RRethy/vim-illuminate

Highlights other occurrences of the word under the cursor using LSP references, treesitter, or regex fallback.

Rationale tied to existing config: With multiple LSPs active (pyright, pyrefly, clangd, ts_ls, rust_analyzer, gopls) and tiny-inline-diagnostic.nvim already providing rich inline diagnostics, the visual feedback loop is strong — but there's no "where else is this symbol used?" highlight. vim-illuminate fills that gap using the already-attached LSP clients for accuracy. It respects vim.diagnostic settings and works alongside blink.cmp without conflict.

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Non-suggestions

nvim-spectre and lazygit.nvim were considered but skipped: grug-far.nvim is already suggested in #287 for search/replace, and fugitive.vim + diffview.nvim + gitsigns.nvim cover the git workflow well enough.