fix: rename overview.md files to avoid conflicts and add collection name

docs/.collection

@@ -0,0 +1 @@
+horus

docs/README.md

@@ -15,19 +15,19 @@ Horus is a distributed job execution system with three layers: Coordinator, Supe
 ### Coordinator
 Workflow orchestration engine for DAG-based execution.
 
-- [Overview](./coordinator/overview.md)
+- [Overview](./coordinator/coordinator.md)
 
 ### Supervisor
 Job dispatcher with authentication and routing.
 
-- [Overview](./supervisor/overview.md)
+- [Overview](./supervisor/supervisor.md)
 - [Authentication](./supervisor/auth.md)
 - [OpenRPC API](./supervisor/openrpc.json)
 
 ### Runners
 Job executors for different workload types.
 
-- [Runner Overview](./runner/overview.md)
+- [Runner Overview](./runner/runners.md)
 - [Hero Runner](./runner/hero.md) - Heroscript execution
 - [SAL Runner](./runner/sal.md) - System operations
 - [Osiris Runner](./runner/osiris.md) - Database operations

docs/architecture.md

@@ -56,7 +56,7 @@ Horus is a hierarchical orchestration runtime with three layers: Coordinator, Su
 - Parallel execution is required
 - Complex data pipelines
 
-[→ Coordinator Documentation](./coordinator/overview.md)
+[→ Coordinator Documentation](./coordinator/coordinator.md)
 
 ### 2. Supervisor (Required)
 **Purpose:** Job admission, authentication, and routing
@@ -74,7 +74,7 @@ Horus is a hierarchical orchestration runtime with three layers: Coordinator, Su
 - Signature-based authentication
 - Runner health monitoring
 
-[→ Supervisor Documentation](./supervisor/overview.md)
+[→ Supervisor Documentation](./supervisor/supervisor.md)
 
 ### 3. Runners (Required)
 **Purpose:** Execute actual job workloads
@@ -90,7 +90,7 @@ Horus is a hierarchical orchestration runtime with three layers: Coordinator, Su
 - Timeout support
 - Environment variable handling
 
-[→ Runner Documentation](./runner/overview.md)
+[→ Runner Documentation](./runner/runners.md)
 
 ## Communication Protocols