fix: update tests/examples for upstream API changes and fix sync loop busy-loop (#3057)

* fix: update tests and examples for upstream API changes

Align error types, struct fields, and constructor calls in 27 test/example
files to match current Core API:

- Box<dyn Error> -> Box<dyn Error + Send + Sync> to match Core::new()/shutdown()
- entry::ActiveModel device_id -> volume_id (field rename)
- location::ActiveModel add volume_id field (new nullable field)
- AppConfig add proxy_pairing and spacebot fields (config v5/v6)
- Re-export ProxyPairingConfig from config module
- VolumeFingerprint::new() -> from_primary/external/network_volume()
- DeviceInfo add device_type field, NetworkFingerprint public_key -> public_key_hash
- SecretKey::generate(thread_rng) -> from_bytes (rand_core version mismatch)
- SdPath::Physical.path String -> PathBuf, thumbnail_url &Uuid -> &str
- init_sync_service unwrap networking Option for Arc<dyn NetworkTransport>

* fix: prevent busy-loop in sync loop when real-time sync is active

The sync loop's Ready state used 'continue' when is_realtime_active()
returned true, which skipped the sleep at the bottom of the loop and
caused a CPU-saturating busy-loop logging 'Skipping catch-up' hundreds
of thousands of times per second. Replace with if/else so the
realtime-active branch falls through to the configurable sleep.

Author: slvnlrt

core/examples/create_memory.rs

@@ -7,7 +7,7 @@ use sd_core::domain::memory::{DocumentType, FactType, MemoryFile, MemoryScope};
 use std::path::PathBuf;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt().with_env_filter("info").init();
 

core/examples/file_type_demo.rs

@@ -3,7 +3,7 @@
 use sd_core::filetype::FileTypeRegistry;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Create registry with built-in types
 	let registry = FileTypeRegistry::new();
 

core/examples/indexing_demo.rs

@@ -24,7 +24,7 @@ use std::path::PathBuf;
 use tokio::time::{sleep, Duration};
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging with more detail
 	tracing_subscriber::fmt()
 		.with_env_filter("sd_core=debug,desktop_indexing_demo=info")

core/examples/job_logging_test.rs

@@ -11,7 +11,7 @@ use std::path::PathBuf;
 use tokio::time::{sleep, Duration};
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt()
 		.with_env_filter("sd_core=debug")

core/examples/library_demo.rs

@@ -6,7 +6,7 @@ use std::path::PathBuf;
 use uuid::Uuid;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt()
 		.with_env_filter("sd_core=debug")
@@ -125,8 +125,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 			accessed_at: Set(None),
 			indexed_at: Set(None),
 			permissions: Set(None),
-			device_id: Set(Some(inserted_device.id)),
 			inode: Set(None),
+			volume_id: Set(None),
 		};
 		let entry_record = entry.insert(db.conn()).await?;
 
@@ -143,6 +143,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 			error_message: Set(None),
 			total_file_count: Set(0),
 			total_byte_size: Set(0),
+			volume_id: Set(None),
 			job_policies: Set(None),
 			created_at: Set(chrono::Utc::now()),
 			updated_at: Set(chrono::Utc::now()),

core/examples/pause_resume_demo.rs

@@ -14,7 +14,7 @@ use tempfile::TempDir;
 use tokio::time::sleep;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt::init();
 

core/examples/shutdown_demo.rs

@@ -5,7 +5,7 @@ use std::time::Duration;
 use tokio::time::sleep;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt::init();
 

core/examples/simple_pause_resume.rs

@@ -8,7 +8,7 @@ use std::time::Duration;
 use tokio::time::sleep;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt::init();
 

core/examples/test_migration.rs

@@ -5,7 +5,7 @@ use sea_orm::{ConnectionTrait, Database, Statement};
 use sea_orm_migration::MigratorTrait;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt()
 		.with_max_level(tracing::Level::DEBUG)

core/examples/volume_demo.rs

@@ -9,7 +9,7 @@ use std::time::Duration;
 use tokio::time::timeout;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
 	// Initialize logging
 	tracing_subscriber::fmt()
 		.with_env_filter("sd_core=info")