feat: EnCoach V2 — complete OWL refactor with 15 new modules

Full architectural refactor from React to Odoo OWL:

- 15 new Odoo modules: signup, placement, exam_template, scoring,
  course_gen, entity_onboard, ai_course, quality_gate,
  ielts_validation, pdf_report, verification, math, it, portal,
  exam_session
- 6 modified modules: core (new user fields), exam (template types),
  adaptive (events/paths/settings), branding (white-label),
  resources (CEFR/AI fields), taxonomy (Math+IT hierarchies)
- ~79 new REST API endpoints across all controller packages
- ~50 admin backend views (form/list/kanban/search/menu)
- 5 custom OWL components: dashboard, content pool, exam validation,
  gap analysis, adaptive timeline
- POS-inspired full-screen exam session with 9 question renderers
- Student portal with 12 website pages (QWeb + OWL)
- AI/ML services: IRT 3PL CAT engine, CEFR mapper, quality gates,
  IELTS validator, SymPy math scorer, speaking evaluator, adaptive engine
- Seed data: IELTS/TOEFL/STEP/IC3 templates, 30+ sample questions,
  English/Math/IT taxonomy trees with 50+ topics
- Updated requirements.txt with new dependencies

Made-with: Cursor

.gitignore

@@ -26,3 +26,12 @@ Thumbs.db
 
 # Docker
 *.tar
+
+# Frontend repo (separate repository)
+new_project/encoach_frontend_new_v1/
+
+# Local dev artifacts
+miniconda3/
+pgdata/
+.conda-envs/
+.conda-pkgs/