feat(editor): Scaffold web spectrogram editor

Initial setup for the spectrogram editor tool.

- Created tools/editor/index.html, script.js, and style.css.

- Added basic structure for WAV loading, visualization, and tool controls.

1 files changed, 35 insertions, 0 deletions

diff --git a/tools/editor/style.css b/tools/editor/style.css
new file mode 100644
index 0000000..f610969
--- /dev/null
+++ b/tools/editor/style.css
@@ -0,0 +1,35 @@
+body {
+    font-family: sans-serif;
+    margin: 20px;
+    background-color: #f4f4f4;
+}
+
+h1, h2 {
+    color: #333;
+}
+
+#editorContainer {
+    display: flex;
+    margin-top: 20px;
+}
+
+#spectrogramCanvas {
+    border: 1px solid #ccc;
+    background-color: #fff;
+    margin-right: 20px;
+}
+
+#controls {
+    border: 1px solid #ccc;
+    padding: 15px;
+    background-color: #eee;
+    min-width: 200px;
+}
+
+#controls button {
+    display: block;
+    width: 100%;
+    margin-bottom: 10px;
+    padding: 10px;
+    cursor: pointer;
+}