feat(profile): add user self-service profile settings page and API

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/views/__init__.py

@@ -25,6 +25,7 @@ from app.views.onboarding import router as onboarding_router
 from app.views.onedrive import router as onedrive_router
 from app.views.pipelines import router as pipelines_router  # Processing pipelines
 from app.views.plans import router as plans_router  # Admin Plan Designer
+from app.views.profile import router as profile_router  # User self-service profile
 from app.views.queue import router as queue_router
 from app.views.scheduled_jobs import router as scheduled_jobs_router  # Scheduled batch jobs
 from app.views.search import router as search_router
@@ -58,6 +59,7 @@ router.include_router(subscriptions_router)  # Pricing + subscription pages
 router.include_router(plans_router)  # Admin Plan Designer
 router.include_router(onboarding_router)  # User onboarding wizard
 router.include_router(pipelines_router)  # Processing pipelines
+router.include_router(profile_router)  # User self-service profile settings
 router.include_router(imap_accounts_router)  # Per-user IMAP ingestion accounts
 router.include_router(integrations_router)  # Unified integrations dashboard
 router.include_router(notifications_router)  # User notification dashboard

app/views/profile.py

@@ -0,0 +1,40 @@
+"""View route for the user self-service profile settings page.
+
+Route:
+  GET /profile  — renders the profile settings HTML page (requires login)
+"""
+
+from __future__ import annotations
+
+import logging
+
+from fastapi import Depends, Request
+from sqlalchemy.orm import Session
+
+from app.models import UserProfile
+from app.utils.i18n import SUPPORTED_LANGUAGES
+from app.views.base import APIRouter, get_db, require_login, templates
+
+logger = logging.getLogger(__name__)
+router = APIRouter()
+
+
+@router.get("/profile", include_in_schema=False)
+@require_login
+async def profile_page(request: Request, db: Session = Depends(get_db)):
+    """Serve the user profile settings page."""
+    user = request.session.get("user") or {}
+    user_id = user.get("sub") or user.get("preferred_username") or user.get("email") or user.get("id")
+
+    profile = None
+    if user_id:
+        profile = db.query(UserProfile).filter(UserProfile.user_id == user_id).first()
+
+    return templates.TemplateResponse(
+        "profile.html",
+        {
+            "request": request,
+            "profile": profile,
+            "supported_languages": SUPPORTED_LANGUAGES,
+        },
+    )