Update protocol version to 6 and enhance API documentation

- Incremented the protocol version from 5 to 6 in the Atlas API documentation, reflecting the latest changes in server/plugin compatibility.
- Added new API endpoints for live patch streaming and updated the server info response structure to include additional fields such as `unexpectedPlaceIds` and `gameId`.
- Improved the WebSocket protocol documentation to align with the new versioning.
- Enhanced metadata handling in the syncback rules and clarified the structure of meta files, including the introduction of new properties and adjustments to existing ones.

These updates improve clarity and maintainability of the API documentation and ensure better alignment with the latest implementation changes.

.cursor/rules/atlas-syncback.mdc

@@ -52,6 +52,7 @@ syncback/
   snapshot.rs         - Convert instances → snapshots
   fs_snapshot.rs      - Filesystem representation
   file_names.rs       - Generate valid filenames
+  meta.rs             - Meta file read/write helpers
   property_filter.rs  - Filter properties per syncback rules
   ref_properties.rs   - Handle Ref properties (cross-references)
   hash/               - Content hashing for change detection
@@ -119,18 +120,33 @@ pub struct SyncbackRules {
     /// Roblox tree paths to ignore (e.g., "ServerStorage/Secrets")
     pub ignore_trees: Vec<String>,
     
-    /// Filesystem paths to ignore (e.g., "src/client/*")
-    pub ignore_paths: Vec<PathBuf>,
+    /// Filesystem glob patterns to ignore (e.g., "src/client/*")
+    pub ignore_paths: Vec<String>,
     
     /// Properties to not sync back per class
     /// Example: {"BasePart": ["Color"], "Script": ["Disabled"]}
-    pub ignore_properties: HashMap<String, Vec<String>>,
+    pub ignore_properties: IndexMap<Ustr, Vec<Ustr>>,
+    
+    /// Instance classes to skip entirely
+    pub ignore_classes: Vec<String>,
     
     /// Whether to sync Workspace.CurrentCamera (default: false)
-    pub sync_current_camera: bool,
+    pub sync_current_camera: Option<bool>,
     
     /// Whether to sync unscriptable properties (default: true)
-    pub sync_unscriptable: bool,
+    pub sync_unscriptable: Option<bool>,
+    
+    /// Whether to skip Ref properties (default: false)
+    pub ignore_referents: Option<bool>,
+    
+    /// Whether /** in ignore paths also matches the directory itself
+    pub create_ignore_dir_paths: Option<bool>,
+    
+    /// Override root-level ignoreHiddenServices for syncback
+    pub ignore_hidden_services: Option<bool>,
+    
+    /// Warn on duplicate child names during syncback
+    pub warn_duplicate_names: Option<bool>,
 }
 ```
 
@@ -207,6 +223,7 @@ pub struct SyncbackSnapshot<'sync> {
     pub new: Ref,                    // New tree instance (Roblox file)
     pub path: PathBuf,               // Target filesystem path
     pub middleware: Option<Middleware>, // How to write (Lua, Rbxm, etc.)
+    pub needs_meta_name: bool,       // Filesystem name differs from instance name
 }
 ```
 
@@ -333,9 +350,9 @@ stats.record_duplicate_name(path, name)
 stats.record_rbxm_fallback(path, reason)
 stats.record_unknown_class(class_name)
 stats.record_unknown_property(class, property)
-stats.has_issues()      // Any warnings?
+stats.has_issues()         // Any warnings?
 stats.has_unknown_types()  // Unknown classes/properties?
-stats.log_summary()     // Log final report
+stats.log_summary()        // Log final report
 ```
 
 **Logged at end of syncback:**
@@ -364,7 +381,7 @@ print('hello')
 ```json5
 // src/MyScript.server.meta.json5 (for MyScript.server.luau)
 {
-    "$properties": {
+    "properties": {
         "Disabled": false
     }
 }
@@ -407,12 +424,7 @@ Filesystem:
 4. **Write permission** - Can't write to file
    - Error reported, syncback continues for other files
 
-**Error collection:**
-```rust
-stats.record_error(&format!("Failed to sync {}: {}", path.display(), error));
-```
-
-All errors collected and reported at end.
+**Error propagation:** Errors are propagated via `anyhow::bail!`, not collected in stats. Fatal errors abort the syncback; non-fatal issues are logged as warnings.
 
 ## Integration with Plugin