notes, cce-graph: icons for the two cce apps that had none

cce-notes gets a new notebook glyph (a ruled page bound by three rings,
apart from file.svg's sheet and pencil.svg's editor); cce-graph, which
cce-graph-vault.desktop already names, points at the existing graph glyph.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

 hicolor/scalable/apps/cce-graph.svg |  1 +
 hicolor/scalable/apps/cce-notes.svg |  1 +
 svg/notes.svg                       | 25 +++++++++++++++++++++++++
 3 files changed, 27 insertions(+)

diff --git a/hicolor/scalable/apps/cce-graph.svg b/hicolor/scalable/apps/cce-graph.svg
new file mode 120000
index 0000000..44eaa4a
--- /dev/null
+++ b/hicolor/scalable/apps/cce-graph.svg
@@ -0,0 +1 @@
+../../../svg/graph.svg
\ No newline at end of file
diff --git a/hicolor/scalable/apps/cce-notes.svg b/hicolor/scalable/apps/cce-notes.svg
new file mode 120000
index 0000000..d2dffb2
--- /dev/null
+++ b/hicolor/scalable/apps/cce-notes.svg
@@ -0,0 +1 @@
+../../../svg/notes.svg
\ No newline at end of file
diff --git a/svg/notes.svg b/svg/notes.svg
new file mode 100644
index 0000000..d14df6c
--- /dev/null
+++ b/svg/notes.svg
@@ -0,0 +1,25 @@
+<svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg">
+  <!-- Notebook: a solid page bound down its left edge by three ring stubs,
+       each entering the page through a dark punch hole, with ruled lines in
+       the dark crease treatment (mail.svg's flap). Set apart from file.svg's
+       folded sheet and pencil.svg's editor by the binding. Page corners are
+       squircle (continuous-curvature) cubics, r=4.5, as in folder.svg: the
+       curve spans 1.5r from each corner with control points at 0.5r. -->
+  <path fill="#ffffff" d="M10 11.75 C10 7.25 12.25 5 16.75 5 L27.25 5 C31.75 5 34 7.25 34 11.75 L34 29.25 C34 33.75 31.75 36 27.25 36 L16.75 36 C12.25 36 10 33.75 10 29.25 Z" />
+  <g fill="none" stroke="#ffffff" stroke-width="3.5" stroke-linecap="round">
+    <path d="M6 12 L10 12" />
+    <path d="M6 20.5 L10 20.5" />
+    <path d="M6 29 L10 29" />
+  </g>
+  <g fill="#282a36" opacity="0.35">
+    <circle cx="14" cy="12" r="1.75" />
+    <circle cx="14" cy="20.5" r="1.75" />
+    <circle cx="14" cy="29" r="1.75" />
+  </g>
+  <g fill="none" stroke="#282a36" stroke-width="2.5" stroke-linecap="round" opacity="0.35">
+    <path d="M19 12 L29.5 12" />
+    <path d="M19 18 L29.5 18" />
+    <path d="M19 24 L29.5 24" />
+    <path d="M19 30 L25.5 30" />
+  </g>
+</svg>