feat: initial backend codebase — EnCoach v3

Complete Odoo 19 backend with 25 custom addons:
- encoach_core: user/entity/role management
- encoach_api: REST API + JWT auth
- encoach_ai: OpenAI integration, AI settings, generation
- encoach_ai_course: AI-powered English & IELTS course generation
- encoach_exam_template/session: exam creation, structures, sessions
- encoach_scoring: AI auto-grading + manual approval
- encoach_vector: pgvector RAG integration
- encoach_adaptive: adaptive learning engine
- encoach_placement: placement testing
- encoach_taxonomy/resources: content taxonomy & resource management
- Plus 14 more modules for courses, branding, portal, etc.

Includes docs: user guide, generation report, developer workflow.

Made-with: Cursor

custom_addons/encoach_adaptive/models/__init__.py

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+from . import adaptive_event
+from . import adaptive_path
+from . import adaptive_settings

custom_addons/encoach_adaptive/models/adaptive_event.py

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+from odoo import models, fields
+
+
+class EncoachAdaptiveEvent(models.Model):
+    _name = 'encoach.adaptive.event'
+    _description = 'Adaptive Learning Event'
+    _order = 'created_at desc'
+
+    student_id = fields.Many2one('res.users', required=True, ondelete='cascade', index=True)
+    course_id = fields.Many2one('op.course', ondelete='set null')
+    event_type = fields.Selection([
+        ('signal', 'Signal'),
+        ('decision', 'Decision'),
+    ], required=True)
+    signal_name = fields.Char(size=100)
+    signal_value = fields.Float()
+    decision = fields.Char(size=200)
+    context = fields.Text()
+    created_at = fields.Datetime(default=fields.Datetime.now)

custom_addons/encoach_adaptive/models/adaptive_path.py

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+from odoo import models, fields
+
+
+class EncoachAdaptivePath(models.Model):
+    _name = 'encoach.adaptive.path'
+    _description = 'Adaptive Learning Path'
+
+    student_id = fields.Many2one('res.users', required=True, ondelete='cascade', index=True)
+    course_id = fields.Many2one('op.course', ondelete='set null')
+    module_queue = fields.Text()
+    source = fields.Selection([
+        ('placement', 'Placement'),
+        ('exam', 'Exam'),
+        ('ai_generated', 'AI Generated'),
+    ])
+    next_generation_brief = fields.Text()

custom_addons/encoach_adaptive/models/adaptive_settings.py

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+from odoo import api, models, fields
+
+
+class EncoachAdaptiveSettings(models.Model):
+    _name = 'encoach.adaptive.settings'
+    _description = 'Adaptive Engine Settings'
+
+    teacher_id = fields.Many2one('res.users', ondelete='cascade')
+    entity_id = fields.Many2one('encoach.entity', ondelete='cascade')
+    step_up_threshold = fields.Float(default=0.85)
+    step_down_threshold = fields.Float(default=0.50)
+    micro_lesson_trigger = fields.Integer(default=2)
+    module_skip_threshold = fields.Float(default=0.95)
+    no_progress_alert_days = fields.Integer(default=3)
+    max_retries = fields.Integer(default=3)
+
+    @api.model
+    def _cron_check_no_progress(self):
+        from odoo.addons.encoach_adaptive.services.alert_service import AdaptiveAlertService
+        AdaptiveAlertService.check_no_progress(self.env)