feat: institutional + support + training admin sections (backend + frontend)

Ship three fully-wired admin areas end-to-end with APIs, seeds, tests and docs.

Backend (new `encoach_lms_api` addon + existing addons):
- Institutional: academic years/terms, departments, admission registers & admissions,
  courses/batches, lessons, fees (terms + student fees + invoicing with income-account
  auto-wiring), gradebook (assignments/grades), library, facilities (encoach.asset),
  student leave, result templates + marksheets (incl. delete-with-cascade).
- Support: `encoach.ticket` model + CRUD/assignee routes; payment records derived
  from `op.student.fees.details` and `account.move`; platform settings backed by
  `encoach.code` and `ir.config_parameter` (packages + grading config).
- Training: `encoach.vocab.item` + `encoach.grammar.rule` (plus progress models)
  with CRUD, pagination, search/level filters, and upsert-style progress endpoints.
  Odoo 19 compatibility: `_sql_constraints` replaced with `@api.constrains`;
  `ValidationError`/`UserError` mapped to HTTP 400.

Frontend:
- Rewire institutional admin pages (Academic Year Manager, Admissions, Courses,
  Lessons, Fees, Gradebook, Library, Facilities, Student Leave, Marksheets,
  Taxonomy, Resources) to real APIs with React Query invalidation and dialogs.
- New typed services: `payments.service.ts`, `platformSettings.service.ts`,
  `training.service.ts`. Updated `fees/gradebook/lms/courseware/taxonomy/
  resources/student-progress/generation` services + related types.
- Rewrite `VocabularyPage`, `GrammarPage`, `PaymentRecordPage`, `SettingsPage`,
  `TicketsPage` to consume live data with search/filter/progress/CRUD flows.
- New shared components: `TaxonomyCascade`, `MaterialViewer`, `teacher/TeacherLibrary`.
- Favicons/branding assets and misc. UX polish across teacher/student pages.

Tooling & QA:
- Seeders: `seed_demo.py`, `seed_demo_data.py`, `seed_institutional.py` (idempotent,
  covers institutional + support + training fixtures incl. income-account wiring).
- API write-flow test suites: `test_write_flows.py` (institutional),
  `test_support_flows.py` (support), `test_training_flows.py` (training),
  `test_ai_full.py`. All suites pass end-to-end.
- Docs: add `docs/PROJECT_SUMMARY.md` with per-section scope, artifacts and QA.
- `.gitignore`: ignore `pgdata_bak_*/`, `frontend/.vite/`, `frontend/dist/`,
  `frontend/node_modules/`.

Made-with: Cursor

custom_addons/encoach_lms_api/models/communication.py

@@ -0,0 +1,69 @@
+from odoo import models, fields
+
+
+class EncoachDiscussionBoard(models.Model):
+    _name = 'encoach.discussion.board'
+    _description = 'Discussion Board'
+
+    name = fields.Char(required=True)
+    course_id = fields.Many2one('op.course', ondelete='cascade')
+    batch_id = fields.Many2one('op.batch', ondelete='set null')
+    chapter_id = fields.Many2one('encoach.course.chapter', ondelete='set null')
+    is_enabled = fields.Boolean(default=True)
+    allow_student_posts = fields.Boolean(default=True)
+    post_ids = fields.One2many('encoach.discussion.post', 'board_id')
+    post_count = fields.Integer(compute='_compute_post_count', store=True)
+
+    def _compute_post_count(self):
+        for rec in self:
+            rec.post_count = len(rec.post_ids)
+
+
+class EncoachDiscussionPost(models.Model):
+    _name = 'encoach.discussion.post'
+    _description = 'Discussion Post'
+    _order = 'create_date desc'
+
+    board_id = fields.Many2one('encoach.discussion.board', required=True, ondelete='cascade')
+    parent_id = fields.Many2one('encoach.discussion.post', string='Parent', ondelete='cascade')
+    child_ids = fields.One2many('encoach.discussion.post', 'parent_id', string='Replies')
+    author_id = fields.Many2one('res.users', required=True, ondelete='cascade')
+    title = fields.Char()
+    content = fields.Text(required=True)
+    is_pinned = fields.Boolean(default=False)
+    is_resolved = fields.Boolean(default=False)
+
+
+class EncoachAnnouncement(models.Model):
+    _name = 'encoach.announcement'
+    _description = 'Announcement'
+    _order = 'create_date desc'
+
+    title = fields.Char(required=True)
+    content = fields.Text(required=True)
+    author_id = fields.Many2one('res.users', required=True, ondelete='cascade')
+    course_id = fields.Many2one('op.course', ondelete='set null')
+    batch_id = fields.Many2one('op.batch', ondelete='set null')
+    priority = fields.Selection([
+        ('normal', 'Normal'),
+        ('important', 'Important'),
+        ('urgent', 'Urgent'),
+    ], default='normal')
+    is_published = fields.Boolean(default=False)
+    published_at = fields.Datetime()
+    expires_at = fields.Datetime()
+    send_email = fields.Boolean(default=False)
+
+
+class EncoachMessage(models.Model):
+    _name = 'encoach.message'
+    _description = 'Direct Message'
+    _order = 'create_date desc'
+
+    sender_id = fields.Many2one('res.users', required=True, ondelete='cascade')
+    recipient_id = fields.Many2one('res.users', required=True, ondelete='cascade')
+    subject = fields.Char(required=True)
+    content = fields.Text(required=True)
+    is_read = fields.Boolean(default=False)
+    read_at = fields.Datetime()
+    send_email_copy = fields.Boolean(default=False)