feat(cms): refactor page content management and implement detailed editors

Refactor the CMS page content system to use a more modular configuration-driven approach. This replaces the monolithic `pageContentConfig.js` with individual configuration files for each page and introduces a shared field utility to standardize editor components.
Key changes:
- Implement a generic `_renderSingletonPageView` helper to reduce duplication across controllers.
- Enhance `_createPageContentController` with `normalizeForEditor`, `normalizeForApi`, and `preparePayload` hooks for custom data transformation.
- Create dedicated configuration and view structures for Partnerships, History, Accreditation, Admissions, and Policies pages.
- Add a specialized section editor for Policies to manage complex nested content.
- Improve the frontend `page-content-editor.js` with support for visibility logic, auto-sequencing for arrays, and URL synchronization for active tabs.
- Update data JSON files to align with the new schema.

data/admissions.json

@@ -5,11 +5,11 @@
     "description": "We believe high-quality education should be accessible to everyone. Explore our straightforward admissions process and flexible payment models designed to fit your life.",
     "primaryCta": {
       "label": "Start Application",
-      "href": "#apply"
+      "href": "http://localhost:3001/admin/admissions"
     },
     "secondaryCta": {
       "label": "View Tuition",
-      "href": "#tuition-breakdown"
+      "href": "http://localhost:3001/admin/admissions"
     },
     "image": "/uploads/admissions/hero-students.png",
     "imageAlt": "Diverse adult students studying online"
@@ -20,19 +20,19 @@
     "description": "Our streamlined process gets you from application to enrolled in days, not months. No application fees, no standardized tests.",
     "steps": [
       {
-        "number": "1",
-        "title": "Submit Application",
-        "description": "Fill out our online form in under 15 minutes. Basic personal and educational history required.",
-        "active": true
-      },
-      {
-        "number": "2",
+        "number": "01",
         "title": "Send Transcripts",
         "description": "Request official transcripts from previous institutions for credit evaluation.",
         "active": false
       },
       {
-        "number": "3",
+        "number": "02",
+        "title": "Submit Application",
+        "description": "Fill out our online form in under 15 minutes. Basic personal and educational history required.",
+        "active": true
+      },
+      {
+        "number": "03",
         "title": "Choose Payment Plan",
         "description": "Select between our monthly subscription or pay-per-course model.",
         "active": false
@@ -72,19 +72,33 @@
       {
         "label": "Traditional University",
         "color": "#0F172A",
-        "values": [25000, 50000, 75000, 100000]
+        "values": [
+          25000,
+          50000,
+          75000,
+          100000
+        ]
       },
       {
         "label": "LAMS",
         "color": "#c49b27",
-        "values": [3588, 7176, 10764, 14352]
+        "values": [
+          3588,
+          7176,
+          10764,
+          14352
+        ]
       }
     ]
   },
   "keyDates": {
     "id": "key-dates",
     "title": "Key Dates & Deadlines",
-    "columns": ["Term", "Application Deadline", "Classes Start"],
+    "columns": [
+      "Term",
+      "Application Deadline",
+      "Classes Start"
+    ],
     "rows": [
       {
         "term": "Fall Term 1",
@@ -106,7 +120,10 @@
   "calculator": {
     "title": "Affordability Calculator",
     "description": "Estimate your monthly investment.",
-    "modelOptions": ["Subscription", "Per Course"],
+    "modelOptions": [
+      "Subscription",
+      "Per Course"
+    ],
     "paceLabel": "Target Pace",
     "minPaceLabel": "Relaxed",
     "maxPaceLabel": "Accelerated",
@@ -136,4 +153,4 @@
       }
     ]
   }
-}
+}