[HIGH] get_scene_dependencies descends into SerializedProperty children on every iteration

[Daliys]

Problem

get_scene_dependencies uses the wrong SerializedProperty iterator pattern and keeps enterChildren true for every loop iteration.

Evidence

• Editor/MCPServerMethods.Snapshot.cs:204-209 initializes enterChildren = true, then sets it back to true inside the loop.
• Nearby code in Editor/MCPServerMethods.Snapshot.cs:130-136 sets enterChildren = false after the first iteration.
• Editor/MCPServerMethods.Search.cs:204-210 uses the same correct flat-walk pattern for reference search.

Impact

The dependency walker can descend into nested compound properties repeatedly, producing dependency output that is inconsistent with sibling tools and likely noisier or duplicated for array/list/nested-struct-heavy components.

Suggested fix

Set enterChildren = false after the first Next(enterChildren) call, matching the other SerializedProperty walks.

Source report

Imported from audit report item: correctness (11) / Editor/MCPServerMethods.Snapshot.cs:208.

[Daliys]

Closed via PR #171. Fixed domain reload hanging, auth token resolution, background App Nap bypass, and added automated test environment sanitizer.