Update API docs with 4 missing endpoints

Added documentation for:
- getShopfloorPCs: List active shopfloor PCs
- getRecordedIP: Look up recorded IP by hostname
- updateWinRMStatus: Update WinRM enabled status
- updateMachinePositions: Bulk update map positions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/API.md

@@ -183,6 +183,107 @@ This ASP API replaces the PHP api.php and provides the same functionality but ru
 
 ---
 
+### 5. `getShopfloorPCs`
+
+**Purpose:** Returns list of all active shopfloor PCs for remote management
+
+**Method:** GET
+
+**Parameters:** None
+
+**Response:**
+```json
+{
+  "success": true,
+  "count": 25,
+  "pcs": [
+    {
+      "machineid": 123,
+      "hostname": "SHOPFLOOR-PC-01",
+      "machinenumber": "2001",
+      "serialnumber": "ABC123",
+      "loggedinuser": "jsmith",
+      "lastupdated": "2025-12-11 10:30:00",
+      "ipaddress": "10.134.100.50",
+      "pctype": "Shopfloor"
+    }
+  ]
+}
+```
+
+---
+
+### 6. `getRecordedIP`
+
+**Purpose:** Look up recorded primary IP (10.134.*) for a hostname
+
+**Method:** POST
+
+**Parameters:**
+- `hostname` - PC hostname
+
+**Response:**
+```json
+{
+  "success": true,
+  "hostname": "SHOPFLOOR-PC-01",
+  "ipaddress": "10.134.100.50"
+}
+```
+
+---
+
+### 7. `updateWinRMStatus`
+
+**Purpose:** Update WinRM enabled status for a PC
+
+**Method:** POST or GET
+
+**Parameters:**
+- `hostname` - PC hostname
+- `hasWinRM` - "1" or "0" (defaults to 1 if not specified)
+
+**Response:**
+```json
+{
+  "success": true,
+  "message": "WinRM status updated",
+  "hostname": "SHOPFLOOR-PC-01",
+  "haswinrm": 1
+}
+```
+
+---
+
+### 8. `updateMachinePositions`
+
+**Purpose:** Bulk update machine map positions (used by map editor)
+
+**Method:** POST
+
+**Parameters:**
+- `changes` - JSON array of position changes
+
+**changes Format:**
+```json
+[
+  {"id": 123, "newLeft": 450, "newTop": 200},
+  {"id": 124, "newLeft": 500, "newTop": 250}
+]
+```
+
+**Response:**
+```json
+{
+  "success": true,
+  "message": "Updated 2 machine positions",
+  "updated": 2,
+  "errors": 0
+}
+```
+
+---
+
 ## JSON Formats
 
 ### Network Interfaces Format
@@ -821,7 +922,7 @@ Monitor these metrics:
 
 ---
 
-**Version:** 1.0
-**Last Updated:** 2025-11-13
+**Version:** 1.1
+**Last Updated:** 2025-12-11
 **Maintained By:** ShopDB Development Team
 **Support:** Review `/logs/api.log` for troubleshooting