refactor(analytics): replace PostHog with OpenPanel (#2480)

packages/stage-ui/package.json

@@ -75,6 +75,7 @@
     "@huggingface/transformers": "catalog:",
     "@moeru/eventa": "catalog:",
     "@moeru/std": "catalog:",
+    "@openpanel/web": "catalog:",
     "@opentelemetry/api": "catalog:",
     "@opentelemetry/core": "catalog:",
     "@opentelemetry/sdk-trace-base": "catalog:",
@@ -150,7 +151,6 @@
     "ofetch": "catalog:",
     "pinia": "catalog:",
     "pinia-plugin-synced": "catalog:",
-    "posthog-js": "catalog:",
     "rehype-katex": "catalog:",
     "rehype-parse": "catalog:",
     "rehype-stringify": "catalog:",