feat(lsp): add file rename → import update support

- Switch pyright to basedpyright (willRenameFiles capability)
- Add nvim-lsp-file-operations for neo-tree rename → LSP updates
- Add Snacks.rename with <leader>cR for current-buffer file renames
- Harden oil.nvim with lsp_file_methods (2s timeout, autosave unmodified)

init.lua

@@ -749,13 +749,12 @@ require('lazy').setup({
             },
           },
         },
-        pyright = {
+        basedpyright = {
           settings = {
-            python = {
+            basedpyright = {
               analysis = {
-                typeCheckingMode = 'basic',
-                autoSearchPaths = true,
-                useLibraryCodeForTypes = true,
+                typeCheckingMode = 'standard',
+                diagnosticMode = 'openFilesOnly',
               },
             },
           },

lua/custom/plugins/lsp_file_operations.lua

@@ -0,0 +1,13 @@
+return {
+  'antosha417/nvim-lsp-file-operations',
+  dependencies = { 'nvim-neo-tree/neo-tree.nvim' },
+  config = function()
+    require('lsp-file-operations').setup()
+
+    -- Advertise file operation capabilities to all LSP servers
+    local file_ops_caps = require('lsp-file-operations').default_capabilities()
+    vim.lsp.config('*', {
+      capabilities = file_ops_caps,
+    })
+  end,
+}

lua/custom/plugins/oil.lua

@@ -10,5 +10,10 @@ return {
     view_options = {
       show_hidden = true,
     },
+    lsp_file_methods = {
+      enabled = true,
+      timeout_ms = 2000,
+      autosave_changes = 'unmodified',
+    },
   },
 }

lua/custom/plugins/opencode.lua

@@ -4,7 +4,13 @@ return {
     -- Recommended for `ask()` and `select()`.
     -- Required for `snacks` provider.
     ---@module 'snacks' <- Loads `snacks.nvim` types for configuration intellisense.
-    { 'folke/snacks.nvim', opts = { input = {}, picker = {}, terminal = {} } },
+    {
+      'folke/snacks.nvim',
+      opts = { input = {}, picker = {}, terminal = {}, rename = {} },
+      keys = {
+        { '<leader>cR', function() Snacks.rename.rename_file() end, desc = 'Rename File (LSP)' },
+      },
+    },
   },
   config = function()
     local function redact_sensitive(value)