feat: Add plan-deep command and Gemini analysis integration

- Create /workflow:plan:deep command for deep technical planning
- Add GEMINI_ANALYSIS_REQUIRED support to conceptual-planning-agent
- Translate brainstorm commands to English (business-analyst, partial innovation-lead)
- Consolidate document format standards in file-structure-standards.md
- Update action-planning-agent to reference centralized format standards

Key changes:
- plan-deep.md: New command with mandatory Gemini CLI analysis via agent
- conceptual-planning-agent.md: Added Gemini Analysis Integration section
- file-structure-standards.md: Enhanced with detailed IMPL_PLAN.md formats
- Unified language to English for consistency

.claude/workflows/file-structure-standards.md

@@ -125,11 +125,17 @@ impl-2              # Another main task
 ### Document Template Standards
 
 #### IMPL_PLAN.md Structure
+
+Two formats available based on task complexity:
+
+##### Stage-Based Format (Simple Tasks)
+Use for tasks with clear, linear progression:
+
 ```markdown
-# Implementation Plan: [Session Topic]
+# Implementation Plan: [Task Name]
 
 ## Overview
-[High-level description]
+[Brief description of the overall goal and approach]
 
 ## Requirements  
 [Functional and non-functional requirements]
@@ -137,17 +143,95 @@ impl-2              # Another main task
 ## [Brainstorming Integration]
 [If .brainstorming/ exists - reference analysis results]
 
-## Implementation Strategy
-[Technical approach and phases]
+## Stage 1: [Name]
+**Goal**: [Specific deliverable]
+**Success Criteria**: 
+- [Testable outcome 1]
+- [Testable outcome 2]
+**Tests**: 
+- [Specific test case 1]
+- [Specific test case 2]
+**Dependencies**: [Previous stages or external requirements]
+**Estimated Effort**: [Small/Medium/Large]
+**Review Status**: [Not Started]
+**Status**: [Not Started]
 
-## Success Criteria
-[Acceptance criteria and validation]
+## Stage 2: [Name]
+[Repeat stage structure]
+
+## Stage 3: [Name]
+[Repeat stage structure]
+
+## Risk Mitigation
+[Identified risks and mitigation strategies]
+
+## Rollback Strategy
+[How to revert if issues arise]
+```
+
+##### Hierarchical Format (Complex Tasks)
+Use for tasks requiring >5 subtasks or spanning >3 modules:
+
+```markdown
+# Implementation Plan: [Project Name]
+
+## Overview
+[Brief description and strategic approach]
+
+## Requirements
+[Functional and non-functional requirements]
+
+## Task Hierarchy
+
+### Main Task: [IMPL-001] [Primary Goal]
+**Description**: [Detailed description]
+**Complexity**: [High/Medium/Low]
+**Estimated Effort**: [Time estimate]
+**Dependencies**: [External dependencies]
+**Status**: [Not Started]
+
+#### Subtask: [IMPL-001.1] [Subtask Name]
+**Description**: [Specific deliverable]
+**Assigned Agent**: [code-developer/code-review-agent/general-purpose]
+**Dependencies**: [Parent/peer task dependencies]
+**Acceptance Criteria**: 
+- [Testable criteria 1]
+- [Testable criteria 2]
+**Estimated Effort**: [Time estimate]
+**Assigned Module**: [Component/file location]
+**Status**: [Not Started]
+**Links**: [Related documentation/requirements]
+
+##### Action Item: [IMPL-001.1.1] [Specific Action]
+**Type**: [Code/Test/Documentation/Review]
+**Recommended Agent**: [code-developer/code-review-agent/general-purpose]
+**Description**: [Concrete action]
+**Files Affected**: [List of files]
+**Verification**: [How to verify completion]
+**Status**: [Not Started]
+
+[Repeat structure for all tasks/subtasks/actions]
+
+### Main Task: [IMPL-002] [Secondary Goal]
+[Repeat task structure]
+
+## Dependency Graph
+[Visual or text representation of task dependencies]
+
+## Resource Requirements
+[Tools, libraries, external dependencies needed]
 
 ## Risk Assessment
-[Potential issues and mitigation strategies]
+[Task-specific risks and mitigation strategies]
+
+## Rollback Strategy
+[System-wide rollback procedures]
 ```
 
 #### TODO_LIST.md Structure
+
+**Keep simple and focused on task tracking:**
+
 ```markdown
 # Task Progress List: [Session Topic]
 
@@ -159,8 +243,20 @@ impl-2              # Another main task
 
 ### Subtasks (Auto-expanded when active)
 - [ ] **IMPL-001.1**: [Subtask Description] → [📋 Details](./.task/impl-001.1.json)
+  - [ ] **IMPL-001.1.1**: [Action Item] → [📋 Details](./.task/impl-001.1.1.json)
+- [ ] **IMPL-001.2**: [Subtask Description] → [📋 Details](./.task/impl-001.2.json)
+
+## Notes
+[Quick notes and reminders for the project]
 ```
 
+**Format Notes**:
+- Main tasks use bold formatting: `**IMPL-XXX**`
+- Subtasks indent under parent tasks
+- Links to task JSON files for details
+- Links to summaries when completed
+- Keep format simple and scannable
+
 ## Chat Session Management
 
 ### Chat Directory Structure