Mobile notifications for iOS (#210)

* mobile: wire notification registration and listener

* implement backend components for push notifications

* refactor: agentic comment cleanup

* docs: use proper module name for particle processor

* set required env variables for push notifications

* bump version

* fix: always upsert push token on mobile start

* Revert "fix: always upsert push token on mobile start"

This reverts commit 90ff18a788.

* send push notifications regardless of online status

go/internal/utils/env.go

@@ -6,13 +6,12 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
-// enum of environment variables
+// EnvVar enumerates the env vars referenced via this package.
 type EnvVar string
 
 const ()
 
-// MustGetEnv returns the value of the environment variable with the given key.
-// panics if the variable is not set.
+// MustGetEnv panics if the variable is unset.
 func MustGetEnv[T string | EnvVar](key T) string {
 	keyString := string(key)
 	value := os.Getenv(keyString)
@@ -24,8 +23,7 @@ func MustGetEnv[T string | EnvVar](key T) string {
 	return value
 }
 
-// GetEnv returns the value of the environment variable with the given key.
-// returns an empty string if the variable is not set.
+// GetEnv returns "" if the variable is unset (and logs a warning).
 func GetEnv(key string) string {
 	value := os.Getenv(key)
 	if value == "" {