feat: replace nvim-cmp with blink-cmp

neovim/blink-cmp.lua

@@ -0,0 +1,28 @@
+require("copilot").setup({
+  copilot_model = "claude-4-sonnet"
+})
+
+require("blink-copilot").setup({})
+
+require("blink-cmp").setup({
+  completion = {
+    documentation = { auto_show = true, auto_show_delay_ms = 500 },
+    ghost_text = { enabled = true },
+  },
+  keymap = {
+    preset = "default"
+  },
+  signature = { enabled = true },
+  sources = {
+    default = { "copilot", "lsp", "buffer", "path", "cmdline", "codecompanion" },
+
+    providers = {
+      copilot = {
+        name = "copilot",
+        module = "blink-copilot",
+        score_offset = 100,
+        async = true,
+      }
+    }
+  },
+})