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_session/controllers/__init__.py

@@ -0,0 +1 @@
+from . import exam_session

custom_addons/encoach_exam_session/controllers/exam_session.py

@@ -0,0 +1,43 @@
+import logging
+import time
+
+import jwt as pyjwt
+
+from odoo import http
+from odoo.http import request
+
+_logger = logging.getLogger(__name__)
+
+
+class ExamSessionController(http.Controller):
+
+    def _generate_exam_jwt(self, user_id):
+        secret = request.env['ir.config_parameter'].sudo().get_param('encoach.jwt_secret')
+        if not secret:
+            return ''
+        return pyjwt.encode(
+            {'user_id': user_id, 'exp': int(time.time()) + 7200},
+            secret, algorithm='HS256',
+        )
+
+    @http.route('/exam/session/<int:attempt_id>', type='http',
+                auth='user', website=False)
+    def exam_session(self, attempt_id, **kw):
+        attempt = request.env['encoach.student.attempt'].sudo().browse(attempt_id)
+        if not attempt.exists() or attempt.student_id.id != request.env.user.id:
+            return request.not_found()
+        token = self._generate_exam_jwt(request.env.user.id)
+        return request.render('encoach_exam_session.exam_session_page', {
+            'attempt': attempt,
+            'session_token': token,
+        })
+
+    @http.route('/placement/test/<int:session_id>', type='http',
+                auth='user', website=True)
+    def placement_test(self, session_id, **kw):
+        session = request.env['encoach.cat.session'].sudo().browse(session_id)
+        if not session.exists() or session.student_id.id != request.env.user.id:
+            return request.not_found()
+        return request.render('encoach_exam_session.placement_session_page', {
+            'cat_session': session,
+        })