refactor(model): add omitempty tags to config struct fields

Add omitempty tags to TOML, YAML, and JSON struct tags for optional
configuration fields in AIAgentConfig, AIConfig, CCOtel, CodeTracking,
LogCleanup, and ShellTimeConfig. This ensures zero-value fields are
omitted during serialization for cleaner config output.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: AnnatarHe

model/types.go

@@ -11,13 +11,13 @@ type Endpoint struct {
 
 type AIAgentConfig struct {
 	// AutoRun settings for different command types
-	View   bool `toml:"view" yaml:"view" json:"view"`
-	Edit   bool `toml:"edit" yaml:"edit" json:"edit"`
-	Delete bool `toml:"delete" yaml:"delete" json:"delete"`
+	View   bool `toml:"view,omitempty" yaml:"view,omitempty" json:"view,omitempty"`
+	Edit   bool `toml:"edit,omitempty" yaml:"edit,omitempty" json:"edit,omitempty"`
+	Delete bool `toml:"delete,omitempty" yaml:"delete,omitempty" json:"delete,omitempty"`
 }
 
 type AIConfig struct {
-	Agent    AIAgentConfig `toml:"agent" yaml:"agent" json:"agent"`
+	Agent    AIAgentConfig `toml:"agent,omitempty" yaml:"agent,omitempty" json:"agent,omitempty"`
 	ShowTips *bool         `toml:"showTips" yaml:"showTips" json:"showTips"`
 }
 
@@ -28,36 +28,36 @@ type CCUsage struct {
 // CCOtel configuration for OTEL-based Claude Code tracking (v2)
 type CCOtel struct {
 	Enabled  *bool `toml:"enabled" yaml:"enabled" json:"enabled"`
-	GRPCPort int   `toml:"grpcPort" yaml:"grpcPort" json:"grpcPort"` // default: 4317
-	Debug    *bool `toml:"debug" yaml:"debug" json:"debug"`          // write raw JSON to debug files
+	GRPCPort int   `toml:"grpcPort,omitempty" yaml:"grpcPort,omitempty" json:"grpcPort,omitempty"` // default: 54027
+	Debug    *bool `toml:"debug" yaml:"debug" json:"debug"`                                        // write raw JSON to debug files
 }
 
 // CodeTracking configuration for coding activity heartbeat tracking
 type CodeTracking struct {
 	Enabled     *bool  `toml:"enabled" yaml:"enabled" json:"enabled"`
-	APIEndpoint string `toml:"apiEndpoint" yaml:"apiEndpoint" json:"apiEndpoint"` // Custom API endpoint for heartbeats
-	Token       string `toml:"token" yaml:"token" json:"token"`                   // Custom token for heartbeats
+	APIEndpoint string `toml:"apiEndpoint,omitempty" yaml:"apiEndpoint,omitempty" json:"apiEndpoint,omitempty"` // Custom API endpoint for heartbeats
+	Token       string `toml:"token,omitempty" yaml:"token,omitempty" json:"token,omitempty"`                   // Custom token for heartbeats
 }
 
 // LogCleanup configuration for automatic log file cleanup
 type LogCleanup struct {
-	Enabled     *bool `toml:"enabled" yaml:"enabled" json:"enabled"`             // default: true (enabled by default)
-	ThresholdMB int64 `toml:"thresholdMB" yaml:"thresholdMB" json:"thresholdMB"` // default: 100 MB
+	Enabled     *bool `toml:"enabled" yaml:"enabled" json:"enabled"`                                           // default: true (enabled by default)
+	ThresholdMB int64 `toml:"thresholdMB,omitempty" yaml:"thresholdMB,omitempty" json:"thresholdMB,omitempty"` // default: 100 MB
 }
 
 type ShellTimeConfig struct {
 	Token       string `toml:"Token" yaml:"token" json:"token"`
-	APIEndpoint string `toml:"APIEndpoint" yaml:"apiEndpoint" json:"apiEndpoint"`
-	WebEndpoint string `toml:"WebEndpoint" yaml:"webEndpoint" json:"webEndpoint"`
+	APIEndpoint string `toml:"APIEndpoint" yaml:"apiEndpoint,omitempty" json:"apiEndpoint,omitempty"`
+	WebEndpoint string `toml:"WebEndpoint" yaml:"webEndpoint,omitempty" json:"webEndpoint,omitempty"`
 	// how often sync to server
-	FlushCount int `toml:"FlushCount" yaml:"flushCount" json:"flushCount"`
+	FlushCount int `toml:"FlushCount,omitempty" yaml:"flushCount,omitempty" json:"flushCount,omitempty"`
 	// how long the synced data would keep in db:
 	// unit is days
-	GCTime int `toml:"GCTime" yaml:"gcTime" json:"gcTime"`
+	GCTime int `toml:"GCTime,omitempty" yaml:"gcTime,omitempty" json:"gcTime,omitempty"`
 
 	// is data should be masking?
 	// @default true
-	DataMasking *bool `toml:"dataMasking" yaml:"dataMasking" json:"dataMasking"`
+	DataMasking *bool `toml:"dataMasking,omitempty" yaml:"dataMasking,omitempty" json:"dataMasking,omitempty"`
 
 	// for debug purpose
 	Endpoints []Endpoint `toml:"ENDPOINTS,omitempty" yaml:"endpoints,omitempty" json:"endpoints,omitempty"`
@@ -66,16 +66,16 @@ type ShellTimeConfig struct {
 	// This config will track each command metrics you run in current shell.
 	// Use this config only the developer asked you to do so.
 	// This could be very slow on each command you run.
-	EnableMetrics *bool `toml:"enableMetrics" yaml:"enableMetrics" json:"enableMetrics"`
+	EnableMetrics *bool `toml:"enableMetrics,omitempty" yaml:"enableMetrics,omitempty" json:"enableMetrics,omitempty"`
 
-	Encrypted *bool `toml:"encrypted" yaml:"encrypted" json:"encrypted"`
+	Encrypted *bool `toml:"encrypted,omitempty" yaml:"encrypted,omitempty" json:"encrypted,omitempty"`
 
 	// AI configuration
-	AI *AIConfig `toml:"ai" yaml:"ai" json:"ai"`
+	AI *AIConfig `toml:"ai,omitempty" yaml:"ai,omitempty" json:"ai,omitempty"`
 
 	// Exclude patterns - regular expressions to exclude commands from being saved
 	// Commands matching any of these patterns will not be synced to the server
-	Exclude []string `toml:"exclude" yaml:"exclude" json:"exclude"`
+	Exclude []string `toml:"exclude,omitempty" yaml:"exclude,omitempty" json:"exclude,omitempty"`
 
 	// CCUsage configuration for Claude Code usage tracking (v1 - ccusage CLI based)
 	CCUsage *CCUsage `toml:"ccusage" yaml:"ccusage" json:"ccusage"`