extend .gitignore and add devcontainer

Author: Polkas

.Rbuildignore

@@ -9,4 +9,5 @@
 ^\.vscode$
 ^_pkgdown\.yml$
 ^\.github$
+^\.devcontainer$
 

.devcontainer/devcontainer.json

@@ -0,0 +1,40 @@
+{
+  "name": "R Development",
+  "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/rocker-org/devcontainer-features/r-rig:latest": {
+      "version": "4.4.2",
+      "installRadian": true,
+      "installVscDebugger": true,
+      "installJupyterlab": true,
+      "vscodeRSupport": "lsp"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "r.rpath.linux": "/usr/local/bin/R",
+        "r.rterm.linux": "/usr/local/bin/radian",
+        "r.rterm.option": [
+          "--no-save",
+          "--no-restore",
+          "--r-binary=/usr/local/bin/R"
+        ],
+        "files.autoSave": "afterDelay",
+        "files.autoSaveDelay": 1000,
+        "editor.formatOnSave": true,
+        "editor.formatOnPaste": true,
+        "editor.defaultFormatter": null,
+        "r.bracketedPaste": true,
+        "[r]": {
+          "editor.defaultFormatter": "Posit.air-vscode"
+        }
+      },
+      "extensions": [
+        "reditorsupport.r",b.copilot-chat"
+      ]
+    }
+  },
+  "postCreateCommand": "echo Hello World"
+}

.gitignore

@@ -35,3 +35,48 @@ po/*~
 inst/doc
 .Rproj.user
 .DS_Store
+
+# ─────── Data files ───────
+# CSV & tabular
+*.csv
+*.tsv
+
+# SAS
+*.sas7bdat
+*.sas7bcat
+
+# Excel
+*.xls
+*.xlsx
+*.xlsm
+*.xlsb
+
+# SPSS, Stata
+*.sav
+*.dta
+
+# R
+*.rda
+*.rdata
+*.rds
+
+# MATLAB, HDF5
+*.mat
+*.h5
+
+# SQLite, DB
+*.db
+*.sqlite
+*.db3
+
+# Documents & reports
+*.pdf
+*.doc
+*.docx
+*.ppt
+*.pptx
+
+# Generic archives (if you also want to block ZIPs, etc.)
+*.zip
+*.tar
+*.gz