feat: add 10 new language adapters

Adds Dart (with optional Flutter auto-detection), Bash (bash-debug-adapter with mason bashdb_dir probing), R (vscDebugger package preflight), Elixir (mix_task), Haskell, OCaml (ocamlearlybird), Zig/Nim/Crystal (via codelldb filetype extension), and F# (via netcoredbg filetype extension). Expands built-in adapter coverage from 12 to 22 languages.

lua/turbo-debug/adapters/dart.lua

@@ -0,0 +1,46 @@
+local loader = require("turbo-debug.adapters.init")
+
+local M = {}
+
+function M.register(dap)
+  local dart = loader.find_executable({ "dart" })
+  if not dart then return end
+
+  local configs = {
+    {
+      type = "dart",
+      request = "launch",
+      name = "Launch Dart file",
+      program = "${file}",
+      cwd = "${workspaceFolder}",
+      toolArgs = { "--enable-vm-service" },
+    },
+  }
+
+  local flutter = loader.find_executable({ "flutter" })
+  if flutter then
+    if not dap.adapters.flutter then
+      dap.adapters.flutter = {
+        type = "executable",
+        command = flutter,
+        args = { "debug_adapter" },
+      }
+    end
+    table.insert(configs, {
+      type = "flutter",
+      request = "launch",
+      name = "Launch Flutter app",
+      program = "lib/main.dart",
+      cwd = "${workspaceFolder}",
+      flutterMode = "debug",
+    })
+  end
+
+  loader.register(dap, "dart", {
+    type = "executable",
+    command = dart,
+    args = { "debug_adapter" },
+  }, configs, { "dart" })
+end
+
+return M