feat(plugins): replace NeoCodeium with Supermaven and add Supermaven plugins

lua/plugins/astrocore.lua

@@ -481,7 +481,7 @@ return {
           function() require("config.picker").with_trouble "diagnostics" end,
           desc = "Search diagnostics (<C-t> sends to Trouble)",
         },
-        ["<C-a><C-s>"] = { "<Cmd>NeoCodeium toggle<CR>", desc = "Toggle NeoCodeium" },
+        ["<C-a><C-s>"] = { "<Cmd>SupermavenToggle<CR>", desc = "Toggle Supermaven" },
 
         -- <Leader>u toggles are mapped through Snacks.toggle in
         -- config.toggles (called from polish.lua) so which-key renders their

lua/plugins/blink-supermaven.lua

@@ -0,0 +1,26 @@
+-- Native supermaven source for blink.cmp (mirrors the astrocommunity blink-copilot pattern).
+-- Inline ghost text + <C-l> accept come from `astrocommunity.completion.supermaven-nvim`;
+-- this additionally surfaces supermaven suggestions in the blink menu so <Tab>/<CR> work.
+return {
+  "Huijiro/blink-cmp-supermaven",
+  lazy = true,
+  specs = {
+    {
+      "saghen/blink.cmp",
+      optional = true,
+      opts = {
+        sources = {
+          default = { "supermaven" },
+          providers = {
+            supermaven = {
+              name = "supermaven",
+              module = "blink-cmp-supermaven",
+              score_offset = 100,
+              async = true,
+            },
+          },
+        },
+      },
+    },
+  },
+}

lua/plugins/neocodeium.lua

@@ -1,42 +0,0 @@
--- AI ghost-text completion via NeoCodeium (Windsurf/Codeium). Replaces
--- supermaven. Suggestions render as virtual text only; blink.cmp keeps its
--- own menu (ghost_text stays disabled in AstroNvim's blink spec).
---
--- Disabled in python buffers and under the LeetCode work directory. Both are
--- evaluated by neocodeium on InsertEnter, and `:NeoCodeium enable_buffer`
--- still overrides them per buffer.
-local leetcode_dir = vim.fn.expand "~/Developer/github.com/prdlk/leetcode/work/"
-
-local function is_leetcode_buffer(bufnr)
-  local name = vim.api.nvim_buf_get_name(bufnr)
-  return name:sub(1, #leetcode_dir) == leetcode_dir
-end
-
--- Insert-mode keys that act on a visible suggestion and otherwise keep their
--- native meaning (<C-h> backspace, <C-w> delete word).
-local function when_visible(action, fallback)
-  return function()
-    local neocodeium = require "neocodeium"
-    if neocodeium.visible() then
-      neocodeium[action]()
-      return ""
-    end
-    return fallback
-  end
-end
-
-return {
-  "monkoose/neocodeium",
-  event = "VeryLazy",
-  cmd = "NeoCodeium",
-  opts = {
-    log_level = "warn",
-    filetypes = { python = false },
-    filter = function(bufnr) return not is_leetcode_buffer(bufnr) end,
-  },
-  keys = {
-    { "<C-l>", when_visible("accept", "<C-l>"), mode = "i", expr = true, desc = "Accept AI suggestion" },
-    { "<C-w>", when_visible("accept_word", "<C-w>"), mode = "i", expr = true, desc = "Accept AI suggestion word" },
-    { "<C-h>", when_visible("clear", "<C-h>"), mode = "i", expr = true, desc = "Clear AI suggestion" },
-  },
-}

lua/plugins/overseer.lua

@@ -0,0 +1,23 @@
+--- overseer.nvim: task output in a Snacks bottom window
+---
+--- The astrocommunity pack (community.lua) owns the plugin spec and the
+--- <Leader>M* maps; this layers the `snacks_output` component
+--- (lua/overseer/component/snacks_output.lua) onto the default component
+--- set so every task shows its terminal buffer in a 24-row window docked at
+--- the bottom. <C-m> / Enter runs a task, see plugins/astrocore.lua.
+--- @module plugins.overseer
+
+return {
+  "stevearc/overseer.nvim",
+  ---@type overseer.SetupOpts
+  opts = {
+    component_aliases = {
+      default = {
+        "on_exit_set_status",
+        "on_complete_notify",
+        { "on_complete_dispose", require_view = { "SUCCESS", "FAILURE" } },
+        { "snacks_output", height = 24 },
+      },
+    },
+  },
+}

lua/plugins/supermaven.lua

@@ -0,0 +1,44 @@
+-- Disable supermaven in buffers under the LeetCode work directory, and
+-- re-enable it when leaving them.
+--
+-- Note: supermaven's built-in `condition` option is one-way — its BufEnter
+-- listener gates the restart branch on `vim.g.SUPERMAVEN_DISABLED`, which
+-- `api.stop()` itself sets, so once auto-stopped it never comes back. This
+-- autocmd owns both directions instead. `vim.g.supermaven_leetcode_stopped`
+-- distinguishes our auto-stop from a manual :SupermavenStop, which stays off.
+local leetcode_dir = vim.fn.expand "~/Developer/github.com/prdlk/leetcode/work/"
+
+local function is_leetcode_buffer()
+  local name = vim.api.nvim_buf_get_name(0)
+  return name:sub(1, #leetcode_dir) == leetcode_dir
+end
+
+local function sync()
+  local api = require "supermaven-nvim.api"
+  if is_leetcode_buffer() then
+    if api.is_running() then
+      api.stop()
+      vim.g.supermaven_leetcode_stopped = true
+    end
+  elseif vim.g.supermaven_leetcode_stopped and not api.is_running() then
+    vim.g.supermaven_leetcode_stopped = nil
+    api.start()
+  end
+end
+
+return {
+  "supermaven-inc/supermaven-nvim",
+  optional = true,
+  -- ignore_filetypes gates both the buffer sync (on_update) and the
+  -- suggestion poll, so python buffers are never sent to the binary
+  opts = { ignore_filetypes = { python = true } },
+  config = function(_, opts)
+    require("supermaven-nvim").setup(opts)
+    vim.api.nvim_create_autocmd("BufEnter", {
+      group = vim.api.nvim_create_augroup("supermaven_leetcode", { clear = true }),
+      desc = "Toggle supermaven off in LeetCode solution buffers",
+      callback = sync,
+    })
+    sync() -- plugin loads on VeryLazy; cover the buffer we're already sitting in
+  end,
+}