fix: Backend added along with missing pages

core/backend/__init__.py

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+"""Compatibility package for Velocity-OS backend imports.
+
+Velocity-OS keeps the simplified source layout (`api/api`, `auth/auth`, etc.)
+but most copied production modules still import `backend.*`. These path shims
+preserve the stable import contract without duplicating implementation files.
+"""

core/backend/api/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "api" / "api")]

core/backend/auth/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "auth" / "auth")]

core/backend/crm/__init__.py

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+"""CRM compatibility package."""

core/backend/crm/canonical_schema.py

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+from __future__ import annotations
+
+from typing import Any
+
+from fastapi import HTTPException
+
+from backend.auth.dependencies import default_tenant_id
+
+_CANONICAL_CRM_SCHEMA_CACHE_KEY = "_canonical_crm_schema_ready"
+
+
+def _sql_text_literal(value: str) -> str:
+    return "'" + value.replace("'", "''") + "'"
+
+
+async def ensure_canonical_crm_schema(app: Any) -> None:
+    if getattr(app.state, _CANONICAL_CRM_SCHEMA_CACHE_KEY, False):
+        return
+
+    pool = getattr(app.state, "db_pool", None)
+    if pool is None:
+        raise HTTPException(status_code=503, detail="Database unavailable.")
+
+    tenant_fallback = default_tenant_id()
+    tenant_default_literal = _sql_text_literal(tenant_fallback)
+    tenant_tables = (
+        "crm_people",
+        "crm_accounts",
+        "crm_leads",
+        "crm_opportunities",
+        "crm_property_interests",
+        "intel_interactions",
+        "intel_reminders",
+        "intel_qd_scores",
+        "intel_qd_timeseries",
+        "workflow_actions",
+        "workflow_approvals",
+        "workflow_import_batches",
+    )
+
+    async with pool.acquire() as conn:
+        for table_name in tenant_tables:
+            await conn.execute(f"ALTER TABLE {table_name} ADD COLUMN IF NOT EXISTS tenant_id TEXT")
+            await conn.execute(
+                f"""
+                UPDATE {table_name}
+                SET tenant_id = $1
+                WHERE tenant_id IS NULL OR tenant_id = ''
+                """,
+                tenant_fallback,
+            )
+            await conn.execute(
+                f"ALTER TABLE {table_name} ALTER COLUMN tenant_id SET DEFAULT {tenant_default_literal}"
+            )
+            await conn.execute(f"ALTER TABLE {table_name} ALTER COLUMN tenant_id SET NOT NULL")
+
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_crm_people_tenant_created ON crm_people (tenant_id, created_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_crm_leads_tenant_status ON crm_leads (tenant_id, status, updated_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_crm_opportunities_tenant_stage ON crm_opportunities (tenant_id, stage, updated_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_crm_property_interests_tenant_person ON crm_property_interests (tenant_id, person_id, created_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_intel_interactions_tenant_person ON intel_interactions (tenant_id, person_id, happened_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_intel_reminders_tenant_status ON intel_reminders (tenant_id, status, due_at)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_intel_qd_scores_tenant_person ON intel_qd_scores (tenant_id, person_id, score_type)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_intel_qd_timeseries_tenant_person ON intel_qd_timeseries (tenant_id, person_id, timestamp DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_workflow_actions_tenant_status ON workflow_actions (tenant_id, status, created_at DESC)"
+        )
+        await conn.execute(
+            "CREATE INDEX IF NOT EXISTS idx_workflow_import_batches_tenant_lifecycle ON workflow_import_batches (tenant_id, lifecycle, created_at DESC)"
+        )
+
+    setattr(app.state, _CANONICAL_CRM_SCHEMA_CACHE_KEY, True)

core/backend/db/__init__.py

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+from pathlib import Path
+
+_core_db_root = Path(__file__).resolve().parents[2] / "db"
+__path__ = [str(_core_db_root / "db"), str(_core_db_root)]

core/backend/migrations/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "migrations" / "migrations")]

core/backend/observability.py

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+from observability import *  # noqa: F401,F403

core/backend/oracle/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "oracle" / "oracle")]

core/backend/routers/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "routers" / "routers")]

core/backend/services/__init__.py

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+from pathlib import Path
+
+__path__ = [str(Path(__file__).resolve().parents[2] / "services" / "services")]