feat(v3): restructure project + add complete frontend

- Restructure: move backend from new_project/ to backend/
- Add full React/TypeScript frontend (37 pages, 17 services, 16 type defs, 11 query hooks)
- Add docs/ with SRS specs, user stories, and workflow documentation
- Update .gitignore for new directory layout

Workflows implemented:
  WF1 User Signup, WF2 Placement Test, WF3 Exam Configuration,
  WF4 General English Exam, WF5 Course Generation,
  WF6 Entity Student Onboarding, AI Course Generation,
  Adaptive Learning Engine UI, White-Label Branding, Score Release

Made-with: Cursor

custom_addons/encoach_exam_template/models/rubric.py

@@ -0,0 +1,18 @@
+from odoo import models, fields
+
+
+class EncoachRubric(models.Model):
+    _name = 'encoach.rubric'
+    _description = 'Scoring Rubric'
+
+    name = fields.Char(size=200, required=True)
+    skill = fields.Selection([
+        ('writing', 'Writing'),
+        ('speaking', 'Speaking'),
+    ], required=True)
+    criteria = fields.Text(required=True)
+    exam_type = fields.Selection([
+        ('academic', 'Academic'),
+        ('general_training', 'General Training'),
+        ('general_english', 'General English'),
+    ])