chore(release): bump version to 0.2.0

Bump pyproject, panel/package.json, roboco.__version__, and config.app_version
to 0.2.0, and cut the CHANGELOG [Released] bucket as [0.2.0] - 2026-06-11
(rate-limit handling, token usage & cost analytics, /ws/system, and the
workspace/gate fixes).

roboco/__init__.py

@@ -5,7 +5,7 @@ A virtual organization of 18 AI agents + 1 human CEO,
 designed to operate as a complete software development workforce.
 """
 
-__version__ = "0.1.0"
+__version__ = "0.2.0"
 
 # Core exports
 from roboco.config import settings

roboco/config.py

@@ -28,7 +28,7 @@ class Settings(BaseSettings):
     # ==========================================================================
     # Application
     # ==========================================================================
-    app_version: str = "0.1.0"
+    app_version: str = "0.2.0"
     debug: bool = False
     environment: str = Field(
         default="development", pattern="^(development|staging|production)$"