feat(lua): add custom startup picker and snacks configuration

lua/plugins/snacks.lua

@@ -0,0 +1,53 @@
+--- Snacks.nvim configuration
+--- Overrides and customizations for snacks.nvim features
+--- Relies on astrocommunity.recipes.telescope-nvim-snacks for base setup
+--- @module plugins.snacks
+
+return {
+  "folke/snacks.nvim",
+  opts = {
+    -- Disable dashboard - we use custom startup picker in astrocore.lua
+    dashboard = { enabled = false },
+
+    -- Enable snacks features we use throughout config
+    bigfile = { enabled = true },
+    input = { enabled = true },
+    notifier = { enabled = true },
+    picker = { enabled = true },
+    quickfile = { enabled = true },
+    rename = { enabled = true },
+    scope = { enabled = true },
+    scroll = { enabled = true },
+    statuscolumn = { enabled = true },
+    terminal = { enabled = true },
+    words = { enabled = true },
+    indent = { enabled = true },
+
+    -- Terminal styles
+    styles = {
+      terminal = {
+        bo = { filetype = "snacks_terminal" },
+        wo = {},
+        keys = {
+          q = "hide",
+          term_normal = {
+            "<esc>",
+            function(self)
+              self.esc_timer = self.esc_timer or (vim.uv or vim.loop).new_timer()
+              if self.esc_timer:is_active() then
+                self.esc_timer:stop()
+                vim.cmd("stopinsert")
+              else
+                self.esc_timer:start(200, 0, function() end)
+                return "<esc>"
+              end
+            end,
+            mode = "t",
+            expr = true,
+            desc = "Double escape to normal mode",
+          },
+        },
+      },
+    },
+  },
+}