Fix coordinate docs/example, roxygenize, add R-CMD-check workflow

- Fix coordinate() to use valid G2 v5 types: 'polar', 'theta',
  'radial', 'radar', 'helix', 'parallel', 'cartesian'
- Change example from coordinate('transpose') to coordinate('theta')
- Run roxygenize() to regenerate all man pages
- Add .github/workflows/R-CMD-check.yaml for CI
- Add node_modules to .Rbuildignore
- All examples verified in headless browser (Puppeteer)
- R CMD check passes with 0 errors, 0 warnings, 0 notes

Co-authored-by: yihui <163582+yihui@users.noreply.github.com>

Author: Copilot

.Rbuildignore

@@ -3,3 +3,6 @@
 ^LICENSE\.md$
 ^README\.md$
 ^\.github$
+^node_modules$
+^package\.json$
+^package-lock\.json$

.github/workflows/R-CMD-check.yaml

@@ -0,0 +1,48 @@
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+permissions: read-all
+
+jobs:
+  R-CMD-check:
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macos-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: ubuntu-latest,  r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest,  r: 'release'}
+          - {os: ubuntu-latest,  r: 'oldrel-1'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true
+          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'

DESCRIPTION

@@ -18,4 +18,4 @@ Suggests:
     testit
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.3.2
+RoxygenNote: 7.3.3

R/gglite.R

@@ -144,14 +144,17 @@ scale_of = function(chart, field, ...) {
 #' Set the Coordinate System
 #'
 #' @param chart A `g2` object.
-#' @param type Coordinate type (e.g., `'polar'`, `'theta'`, `'transpose'`).
-#' @param ... Additional coordinate options.
+#' @param type Coordinate type. Supported types include `'polar'`, `'theta'`,
+#'   `'radial'`, `'radar'`, `'helix'`, `'parallel'`, and `'cartesian'` (the
+#'   default). See the G2 coordinate documentation for details.
+#' @param ... Additional coordinate options (e.g., `innerRadius`, `outerRadius`,
+#'   `startAngle`, `endAngle`, or `transform`).
 #' @return The modified `g2` object.
 #' @export
 #' @examples
 #' g2(data.frame(x = c('A', 'B'), y = c(3, 7)), x = x, y = y) |>
 #'   mark_interval() |>
-#'   coordinate('transpose')
+#'   coordinate('theta')
 coordinate = function(chart, type, ...) {
   chart$coords = c(list(type = type), list(...))
   chart