feat: add posthog

Author: dwaldeck-light-it

.env.example

@@ -12,3 +12,6 @@ VITE_SENTRY_TRACE_PROPAGATION_TARGET_REGEX=
 
 VITE_ENABLE_DEVTOOLS=
 VITE_ENABLE_REACT_SCAN=true
+
+VITE_POSTHOG_API_KEY=
+VITE_POSTHOG_HOST=

cspell.json

@@ -17,6 +17,8 @@
     "lukemorales",
     "sonner",
     "TTFB",
-    "VITE"
+    "VITE",
+    "POSTHOG",
+    "posthog"
   ]
 }

package.json

@@ -49,12 +49,13 @@
     "@sentry/react": "^9.41.0",
     "@t3-oss/env-core": "^0.13.8",
     "@tailwindcss/vite": "^4.1.11",
-    "@tanstack/react-query": "^5.83.0",
+    "@tanstack/react-query": "^5.90.2",
     "@tanstack/react-router": "^1.129.8",
     "@tanstack/react-router-devtools": "^1.132.25",
     "@tanstack/react-table": "^8.21.3",
     "axios": "^1.12.0",
     "i18next": "^25.3.2",
+    "posthog-js": "^1.270.1",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-hook-form": "^7.61.1",
@@ -80,7 +81,7 @@
     "@storybook/react-vite": "^9.0.18",
     "@stylistic/eslint-plugin": "^5.2.2",
     "@tanstack/eslint-plugin-router": "^1.129.7",
-    "@tanstack/react-query-devtools": "^5.83.0",
+    "@tanstack/react-query-devtools": "^5.90.2",
     "@tanstack/router-plugin": "^1.129.8",
     "@testing-library/react": "^16.3.0",
     "@types/node": "^24.1.0",