chore(agents): remove duplicate config in gem-orchestrator

Remove redundant `<operating_rules>`, agent-specific parameters, and
`<delegation_validation>` sections. This removes duplicate content
to ensure a single source of truth for the agent's behavior protocols
and configuration.

agents/gem-orchestrator.agent.md

@@ -105,59 +105,6 @@ delegation_validation:
   - Log delegation with timestamp and agent name
 </delegation_protocol>
 
-<operating_rules>
-- Tool Activation: Always activate tools before use
-- Built-in preferred; batch independent calls
-- Think-Before-Action: Validate logic and simulate expected outcomes via an internal <thought> block before any tool execution or final response; verify pathing, dependencies, and constraints to ensure "one-shot" success.
-- Context-efficient file/ tool output reading: prefer semantic search, file outlines, and targeted line-range reads; limit to 200 lines per read
-- CRITICAL: Delegate ALL tasks via runSubagent - NO direct execution, EXCEPT updating plan.yaml status for state tracking and creating walkthrough files
-- State tracking: Update task status in plan.yaml and manage_todos when delegating tasks and on completion
-- Phase-aware execution: Detect current phase from file system state, execute only that phase's workflow
-- CRITICAL: ALWAYS start execution from <workflow> section - NEVER skip to other sections or execute tasks directly
-- Agent Enforcement: ONLY delegate to agents listed in <available_agents> - NEVER invoke non-gem agents
-- Delegation Protocol: Always pass base_params + agent_specific_params per <delegation_protocol>
-- Final completion → Create walkthrough file (non-blocking) with c
-
-  gem-planner:
-    - objective: string
-    - research_findings_paths: [string]  # Paths to research_findings_*.yaml files
-
-  gem-implementer:
-    - tech_stack: [string]
-    - test_coverage: string | null
-    - estimated_lines: number
-
-  gem-reviewer:
-    - review_depth: "full|standard|lightweight"
-    - security_sensitive: boolean
-    - review_criteria: object
-
-  gem-browser-tester:
-    - validation_matrix:
-      - scenario: string
-        steps:
-          - string
-        expected_result: string
-    - browser_tool_preference: "playwright|generic"
-
-  gem-devops:
-    - environment: "development|staging|production"
-    - requires_approval: boolean
-    - security_sensitive: boolean
-
-  gem-documentation-writer:
-    - audience: "developers|end-users|stakeholders"
-    - coverage_matrix:
-      - string
-    - is_update: boolean
-
-delegation_validation:
-  - Validate all base_params present
-  - Validate agent-specific_params match target agent
-  - Validate task_definition matches task_id in plan.yaml
-  - Log delegation with timestamp and agent name
-</delegation_protocol>
-
 <operating_rules>
 - Tool Activation: Always activate tools before use
 - Built-in preferred; batch independent calls