Add initial chasm websocket API docs

Author: addshore

.vitepress/config.mts

@@ -626,6 +626,12 @@ export default withMermaid(defineConfig({
                   linkPrefix: '/apis/v2/',
                   addedOperations: new Set(),
                 })),
+                collapse(sidebarSpec2.generateSidebarGroup({
+                  tag: ["chasm"],
+                  text: "Chasm",
+                  linkPrefix: '/apis/v2/',
+                  addedOperations: new Set(),
+                })),
                 collapse(sidebarSpec2.generateSidebarGroup({
                   tag: ["geofences"],
                   text: "Geofences",

cspell.yaml

@@ -149,6 +149,9 @@ words:
   - listid
   - fenceid
   - targetid
+  - unsub
+  - unsubscription
+  - Unsubscription
 
 # Words to ignore (none configured)
 ignoreWords: []