Clean up env files

.env.example

@@ -1,8 +1,49 @@
-# Copy this to `.env` and `.env.test` files
+# The env the app is running in e.g. development, testflight, production
+EXPO_PUBLIC_ENV=development
 
-BITDRIFT_API_KEY=
-SENTRY_AUTH_TOKEN=
-EXPO_PUBLIC_LOG_LEVEL=debug
-EXPO_PUBLIC_LOG_DEBUG=
+# This is the short commit hash that the current bundle was made from.
 EXPO_PUBLIC_BUNDLE_IDENTIFIER=
+
+# Should be formatted YYMMDD so that it increases for each build.
 EXPO_PUBLIC_BUNDLE_DATE=0
+
+# Optional app view proxy DID
+EXPO_PUBLIC_APPVIEW_PROXY_DID=did:web:api.cozy.bsky.dev
+
+# The log level for the app's logger transports
+EXPO_PUBLIC_LOG_LEVEL=debug
+
+# Enable debug logs for specific logger instances
+EXPO_PUBLIC_LOG_DEBUG=session
+
+# Chat service DID
+EXPO_PUBLIC_CHAT_PROXY_DID=
+
+#
+#
+# Bluesky specific values
+#
+#
+
+# Sentry DSN for telemetry
+SENTRY_DSN=
+
+# Populates the `dist` value on Sentry events. We use the full commit hash the
+# current bundle was made from.
+SENTRY_DIST=test
+
+# Populates the `release` value on Sentry events. This is the version of the
+# app specified in the package.json.
+SENTRY_RELEASE=dev
+
+# Bitdrift API key. If undefined, Bitdrift will be disabled.
+BITDRIFT_API_KEY=
+
+#
+#
+# CI and build related
+#
+#
+
+# Sentry token used to authenticate source map uploads
+SENTRY_AUTH_TOKEN=