feat(analytics): implement advanced tracking with script-less smart proxy

- Added Umami Smart Proxy route handler
- Refactored Umami adapter to use proxy-based fetch
- Implemented TrackedButton, TrackedLink, and ScrollDepthTracker
- Integrated event tracking into ContactForm
- Enhanced Analytics component with manual pageview and performance tracking

apps/web/src/components/analytics/analytics-events.ts

@@ -0,0 +1,44 @@
+/**
+ * Analytics Events Utility
+ *
+ * Centralized definitions for common analytics events and their properties.
+ */
+
+export const AnalyticsEvents = {
+  // Page & Navigation Events
+  PAGE_VIEW: "pageview",
+  PAGE_SCROLL: "page_scroll",
+  PAGE_EXIT: "page_exit",
+  SCROLL_DEPTH: "scroll_depth",
+
+  // User Interaction Events
+  BUTTON_CLICK: "button_click",
+  LINK_CLICK: "link_click",
+  FORM_SUBMIT: "form_submit",
+  FORM_START: "form_start",
+  FORM_ERROR: "form_error",
+  FORM_FIELD_FOCUS: "form_field_focus",
+
+  // UI Interaction Events
+  MODAL_OPEN: "modal_open",
+  MODAL_CLOSE: "modal_close",
+  TOGGLE_SWITCH: "toggle_switch",
+  ACCORDION_TOGGLE: "accordion_toggle",
+  TAB_SWITCH: "tab_switch",
+
+  // Error & Performance Events
+  ERROR: "error",
+  PERFORMANCE: "performance",
+  API_ERROR: "api_error",
+  API_SUCCESS: "api_success",
+
+  // Custom Business Events
+  CONTACT_FORM_SUBMIT: "contact_form_submit",
+  NEWSLETTER_SUBSCRIBE: "newsletter_subscribe",
+} as const;
+
+/**
+ * Type-safe event properties for common events
+ */
+export type AnalyticsEventName =
+  (typeof AnalyticsEvents)[keyof typeof AnalyticsEvents];