Rename AGENT.md to AGENTS.md and add symlinks for different AI agents

Signed-off-by: Sergey Karpov <[email protected]>

Author: skarpovdev

AGENTS.md

@@ -225,7 +225,7 @@ export OPEN_ROUTER_API_TEST_KEY=your_key_here
 
 ## Development Workflow
 
-### Branch Strategy
+### Branch Strateg
 
 - **develop**: All development (features and bug fixes)
 - **main**: Released versions only