docs(10.1-05): add sub-workflow deployment guide

- Documents 6 sub-workflows (3 deployed, 3 pending)
- Lists all Execute Workflow nodes and target IDs
- Provides deployment steps for TODO placeholders
- Includes rollback instructions using backup files
- Architecture diagram shows workflow relationships
- Input/output contracts for new sub-workflows
- Testing checklist for post-deployment verification

DEPLOY-SUBWORKFLOWS.md

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+# Sub-workflow Deployment Guide
+
+## Overview
+
+Phase 10.1 (Aggressive Workflow Modularization) reduced the main workflow from 192 nodes to 168 nodes by extracting domain-specific functionality into sub-workflows.
+
+**Final State:**
+- Main workflow: 168 nodes (reduced by 24 nodes, -12.5%)
+- Total sub-workflows: 6 (3 pre-existing + 3 new)
+
+## Sub-workflows
+
+| File | Purpose | Nodes | Status |
+|------|---------|-------|--------|
+| n8n-update.json | Container update operations | 34 | Deployed (ID: `7AvTzLtKXM2hZTio92_mC`) |
+| n8n-actions.json | Container start/stop/restart | 11 | Deployed (ID: `fYSZS5PkH0VSEaT5`) |
+| n8n-logs.json | Container log retrieval | 9 | Deployed (ID: `oE7aO2GhbksXDEIw`) |
+| n8n-batch-ui.json | Batch selection UI | 16 | **TODO: Deploy** |
+| n8n-status.json | Container list/status | 11 | **TODO: Deploy** |
+| n8n-confirmation.json | Confirmation dialogs | 16 | **TODO: Deploy** |
+
+## Deployment Steps
+
+### Step 1: Deploy n8n-batch-ui.json
+
+1. In n8n, go to Settings > Import from File
+2. Import `n8n-batch-ui.json`
+3. Note the assigned workflow ID (e.g., `abc123xyz`)
+4. In `n8n-workflow.json`, search for `TODO_DEPLOY_BATCH_UI_WORKFLOW`
+5. Replace with the actual workflow ID:
+   ```json
+   "value": "abc123xyz"
+   ```
+6. There is 1 occurrence to replace
+
+### Step 2: Deploy n8n-status.json
+
+1. Import `n8n-status.json` to n8n
+2. Note the assigned workflow ID
+3. In `n8n-workflow.json`, search for `TODO_DEPLOY_STATUS_WORKFLOW`
+4. Replace all occurrences with the actual workflow ID
+5. There are 4 occurrences to replace:
+   - Execute Container Status
+   - Execute Select Status
+   - Execute Paginate Status
+   - Execute Batch Cancel Status
+
+### Step 3: Deploy n8n-confirmation.json
+
+1. Import `n8n-confirmation.json` to n8n
+2. Note the assigned workflow ID
+3. In `n8n-workflow.json`, search for `TODO_DEPLOY_CONFIRMATION_WORKFLOW`
+4. Replace with the actual workflow ID
+5. There is 1 occurrence to replace
+
+### Step 4: Re-import Main Workflow
+
+1. Import the updated `n8n-workflow.json` to n8n
+2. Activate the workflow
+
+## Execute Workflow Node Mapping
+
+| Node Name | Target Sub-workflow | Workflow ID |
+|-----------|---------------------|-------------|
+| Execute Text Update | n8n-update.json | `7AvTzLtKXM2hZTio92_mC` |
+| Execute Callback Update | n8n-update.json | `7AvTzLtKXM2hZTio92_mC` |
+| Execute Batch Update | n8n-update.json | `7AvTzLtKXM2hZTio92_mC` |
+| Execute Container Action | n8n-actions.json | `fYSZS5PkH0VSEaT5` |
+| Execute Inline Action | n8n-actions.json | `fYSZS5PkH0VSEaT5` |
+| Execute Batch Action Sub-workflow | n8n-actions.json | `fYSZS5PkH0VSEaT5` |
+| Execute Text Logs | n8n-logs.json | `oE7aO2GhbksXDEIw` |
+| Execute Inline Logs | n8n-logs.json | `oE7aO2GhbksXDEIw` |
+| Execute Batch UI | n8n-batch-ui.json | `TODO_DEPLOY_BATCH_UI_WORKFLOW` |
+| Execute Container Status | n8n-status.json | `TODO_DEPLOY_STATUS_WORKFLOW` |
+| Execute Select Status | n8n-status.json | `TODO_DEPLOY_STATUS_WORKFLOW` |
+| Execute Paginate Status | n8n-status.json | `TODO_DEPLOY_STATUS_WORKFLOW` |
+| Execute Batch Cancel Status | n8n-status.json | `TODO_DEPLOY_STATUS_WORKFLOW` |
+| Execute Confirmation | n8n-confirmation.json | `TODO_DEPLOY_CONFIRMATION_WORKFLOW` |
+
+## Rollback
+
+If issues are encountered, backup files are available:
+
+```bash
+# Restore to before batch UI extraction
+cp n8n-workflow.json.backup-batch n8n-workflow.json
+
+# Restore to before status extraction
+cp n8n-workflow.json.backup-status n8n-workflow.json
+
+# Restore to before confirmation extraction
+cp n8n-workflow.json.backup-confirm n8n-workflow.json
+```
+
+Then re-import the restored `n8n-workflow.json` to n8n.
+
+## Architecture
+
+```
+n8n-workflow.json (168 nodes - orchestrator)
+├── Telegram Trigger (1)
+├── Auth + Error Handling
+├── Keyword Routing (switch/if nodes)
+│
+├── Update Operations
+│   ├── Execute Text Update ──────────┐
+│   ├── Execute Callback Update ──────┼── n8n-update.json (34 nodes)
+│   └── Execute Batch Update ─────────┘
+│
+├── Action Operations
+│   ├── Execute Container Action ─────┐
+│   ├── Execute Inline Action ────────┼── n8n-actions.json (11 nodes)
+│   └── Execute Batch Action ─────────┘
+│
+├── Log Operations
+│   ├── Execute Text Logs ────────────┐
+│   └── Execute Inline Logs ──────────┴── n8n-logs.json (9 nodes)
+│
+├── Batch UI
+│   └── Execute Batch UI ─────────────── n8n-batch-ui.json (16 nodes)
+│       ├── Returns: keyboard/confirmation/execute/cancel/limit
+│       └── Main routes response based on action
+│
+├── Container Status
+│   ├── Execute Container Status ─────┐
+│   ├── Execute Select Status ────────┼── n8n-status.json (11 nodes)
+│   ├── Execute Paginate Status ──────┤   Returns: list/status/paginate
+│   └── Execute Batch Cancel Status ──┘
+│
+└── Confirmation Dialogs
+    └── Execute Confirmation ─────────── n8n-confirmation.json (16 nodes)
+        ├── Returns: show_stop/show_update/confirm_*/cancel/expired
+        └── Calls n8n-actions.json for confirmed stop actions
+```
+
+## Sub-workflow Input/Output Contracts
+
+### n8n-batch-ui.json
+
+**Input:**
+- `chatId`, `messageId`, `queryId`
+- `callbackData`, `action`, `batchPage`
+- `selectedCsv`, `toggleName`
+
+**Output:**
+- `action`: keyboard | confirmation | execute | cancel | limit_reached
+
+### n8n-status.json
+
+**Input:**
+- `chatId`, `messageId`, `queryId`
+- `action`, `containerId`, `containerName`
+- `page`, `searchTerm`
+
+**Output:**
+- `action`: list | status | paginate | status_direct
+
+### n8n-confirmation.json
+
+**Input:**
+- `chatId`, `messageId`, `queryId`
+- `action`, `containerId`, `containerName`
+- `confirmAction`, `confirmationToken`
+- `expired`, `responseMode`
+
+**Output:**
+- `action`: show_stop | show_update | confirm_stop_result | confirm_update | cancel | expired
+
+## Testing Checklist
+
+After deployment, verify:
+
+- [ ] `/list` - Shows container list
+- [ ] `/status <container>` - Shows container details
+- [ ] `/stop <container>` - Shows confirmation dialog
+- [ ] Confirm stop - Executes stop action
+- [ ] Cancel stop - Returns to status view
+- [ ] `/update <container>` - Shows confirmation dialog
+- [ ] Confirm update - Executes update flow
+- [ ] `/stop` (no args) - Shows batch selection UI
+- [ ] Select multiple containers - Batch selection works
+- [ ] Execute batch - All selected containers processed
+- [ ] `/logs <container>` - Shows container logs