Add VSCode extensions recommendations for improved development experience

Author: Natuworkguy

.gitignore

@@ -190,7 +190,9 @@ cython_debug/
 #  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
 #  and can be added to the global gitignore or merged into this file. However, if you prefer, 
 #  you could uncomment the following to ignore the entire vscode folder
-.vscode/
+#  (shared workspace config is un-ignored below)
+.vscode/*
+!.vscode/extensions.json
 
 # Ruff stuff:
 .ruff_cache/

.vscode/extensions.json

@@ -0,0 +1,17 @@
+{
+  "recommendations": [
+    "ms-python.python",
+    "ms-python.vscode-pylance",
+
+    "charliermarsh.ruff",
+    "astral-sh.ty",
+    "ms-python.mypy-type-checker",
+    "ms-python.flake8",
+    "nwgh.bandit",
+    "kennethlove.interrogate",
+    "DavidAnson.vscode-markdownlint",
+
+    "marcinbar.vscode-squirrel",
+    "rashwell.tcl"
+  ]
+}