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/particle/models.go

@@ -6,7 +6,6 @@ import (
 	"time"
 )
 
-// ParticleType represents the type of particle
 type ParticleType string
 
 const (
@@ -20,7 +19,6 @@ const (
 	// TypeThink  ParticleType = "think"
 )
 
-// VisibilityMode represents how access to a particle is determined
 type VisibilityMode string
 
 const (
@@ -32,7 +30,6 @@ const (
 var ErrInvalidParticleType = errors.New("invalid particle type")
 var ErrInvalidVisibilityMode = errors.New("invalid visibility mode")
 
-// ParseParticleType parses a string into a ParticleType
 func ParseParticleType(s string) (ParticleType, error) {
 	switch s {
 	case string(TypeStream):
@@ -54,7 +51,6 @@ func ParseParticleType(s string) (ParticleType, error) {
 	}
 }
 
-// ParseVisibilityMode parses a string into a VisibilityMode
 func ParseVisibilityMode(s string) (VisibilityMode, error) {
 	switch s {
 	case "", string(VisibilityNetworkAll):
@@ -68,7 +64,6 @@ func ParseVisibilityMode(s string) (VisibilityMode, error) {
 	}
 }
 
-// Stream status values
 type StreamStatus string
 
 const (
@@ -76,7 +71,6 @@ const (
 	StreamStatusClosed StreamStatus = "closed"
 )
 
-// Particle represents a content particle in the system
 type Particle struct {
 	ID             string
 	Type           ParticleType
@@ -89,7 +83,6 @@ type Particle struct {
 	CreatedAt      time.Time
 }
 
-// CreateInput represents the input for creating a new particle
 type CreateInput struct {
 	Type       ParticleType
 	NetworkID  string
@@ -99,18 +92,15 @@ type CreateInput struct {
 	Visibility VisibilityMode
 }
 
-// ListFilter represents filtering options for listing particles
 type ListFilter struct {
 	Types []ParticleType
 }
 
-// Cursor represents a pagination cursor for bidirectional pagination
 type Cursor struct {
 	Position  string // particle ID or timestamp
 	Direction string // "before" or "after"
 }
 
-// ParticleList represents a paginated list of particles
 type ParticleList struct {
 	Particles  []*Particle
 	HasMore    bool
@@ -118,57 +108,48 @@ type ParticleList struct {
 	PrevCursor *Cursor
 }
 
-// StreamData represents the data stored for stream particles
 type StreamData struct {
 	Name        string  `json:"name"`
 	Status      string  `json:"status"` // "open" or "closed"
 	Description *string `json:"description"`
 }
 
-// FolderData represents the data stored for folder particles
 type FolderData struct {
 	Name  string  `json:"name"`
 	Color *string `json:"color"`
 }
 
-// MediaData represents the data stored for media particles
 type MediaData struct {
-	ObjectID   string `json:"object_id"` // reference to storage object
+	ObjectID   string `json:"object_id"`
 	MimeType   string `json:"mime_type"`
 	DurationMs int    `json:"duration_ms"`
-	// Caption    *string `json:"caption"`
 }
 
-// FileData represents the data stored for file particles
 type FileData struct {
-	ObjectID string `json:"object_id"` // reference to storage object
+	ObjectID string `json:"object_id"`
 	Filename string `json:"filename"`
 	MimeType string `json:"mime_type"`
-	Size     int64  `json:"size"` // in bytes
+	Size     int64  `json:"size"` // bytes
 }
 
-// TextData represents the data stored for text particles
 type TextData struct {
 	Content string `json:"content"`
 }
 
-// QuestData represents the data stored for quest particles
 type QuestData struct {
 	Title       string  `json:"title"`
 	Description string  `json:"description"`
 	Done        bool    `json:"done"`
 	Status      *string `json:"status"`
 	AssignedTo  *string `json:"assigned_to,omitempty"` // email
-	DueDate     *string `json:"due_date,omitempty"`    // ISO date string
+	DueDate     *string `json:"due_date,omitempty"`    // ISO date
 }
 
-// PaperData represents the data stored for paper particles
 type PaperData struct {
 	Title   string `json:"title"`
 	Content string `json:"content"` // markdown
 }
 
-// AckInfo represents an acknowledgment record
 type AckInfo struct {
 	Email   string
 	AckedAt time.Time