chore(plugins): purge typing-era tooling

Agent-driven work shifted nvim from writing code to reading and
reviewing it. Dropped:

- supermaven-nvim: inline AI completion duplicates the agent
- nvim-spectre: project-wide find/replace is now a prose request
- tailwind-tools: authoring aid for markup not hand-written
- editing.lua: hop.nvim plus ~85 lines of commented-out plugins
  (hardtime, ufo, local-highlight)
- telescope.nvim: second picker; gd/gv/gr now use fzf-lua, which
  was already bound to lsp_references

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

lua/plugins/git.lua

@@ -5,11 +5,7 @@ return {
     dependencies = {
       "nvim-lua/plenary.nvim", -- required
       "sindrets/diffview.nvim", -- optional - Diff integration
-
-      -- Only one of these is needed.
-      "nvim-telescope/telescope.nvim", -- optional
-      "ibhagwan/fzf-lua", -- optional
-      -- "echasnovski/mini.pick", -- optional
+      "ibhagwan/fzf-lua", -- optional - picker
     },
     config = true,
     keys = {