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_quality_gate/models/__init__.py

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

custom_addons/encoach_quality_gate/models/ielts_standards_check.py

@@ -0,0 +1,22 @@
+from odoo import models, fields
+
+
+class EncoachIeltsStandardsCheck(models.Model):
+    _name = 'encoach.ielts.standards.check'
+    _description = 'IELTS Standards Check'
+
+    content_id = fields.Integer(required=True)
+    content_type = fields.Selection([
+        ('passage', 'Passage'),
+        ('audio', 'Audio'),
+        ('writing_prompt', 'Writing Prompt'),
+        ('speaking_card', 'Speaking Card'),
+    ], required=True)
+    check_type = fields.Selection([
+        ('format_compliance', 'Format Compliance'),
+        ('band_calibration', 'Band Calibration'),
+        ('answer_key_completeness', 'Answer Key Completeness'),
+    ], required=True)
+    passed = fields.Boolean(default=False)
+    error_detail = fields.Text()
+    checked_at = fields.Datetime(default=fields.Datetime.now)