chore: add golangci-lint tasks and force LF on Go files

Add VS Code tasks to run golangci-lint (with and without --fix) and mark
*.go as text eol=lf so Go sources check out with LF, avoiding spurious
CRLF lint failures on Windows. Also drop the now-redundant explicit
DockerInit.sh/DockerEntrypoint.sh entries already covered by *.sh.

.vscode/tasks.json

@@ -115,6 +115,35 @@
         "$go"
       ]
     },
+    {
+      "label": "go: golangci-lint run",
+      "type": "shell",
+      "command": "golangci-lint",
+      "args": [
+        "run"
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}"
+      },
+      "problemMatcher": [
+        "$go"
+      ]
+    },
+    {
+      "label": "go: golangci-lint run --fix",
+      "type": "shell",
+      "command": "golangci-lint",
+      "args": [
+        "run",
+        "--fix"
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}"
+      },
+      "problemMatcher": [
+        "$go"
+      ]
+    },
     {
       "label": "frontend: ncu -u",
       "type": "shell",