Aura agent_with_tools harness

Permanent validation asset. Not a customer-facing app. See harness-tools/README.md.

Active toggles

ENABLE_SYSTEM_PROMPT_MARKERS = true
ENABLE_TOOL_APPROVAL_BUG = true
ENABLE_CROSS_TENANT_RAG_BUG = true
ENABLE_BOLA_BUG = true
ENABLE_DEBUG_LEAK = true
ENABLE_TOOL_ARGUMENT_BUG = true
ENABLE_TOOL_ARGUMENT_CLEAN_CONTROL = true

Endpoints

POST /api/chat
POST /api/rag/upload
POST /api/rag/search
GET /api/sources
GET /api/debug
GET /api/health