feat: deep-agent canvas, live observability, and multi-environment tooling

Self-hosted platform for building, testing, and shipping LangChain/LangGraph agents. Deep-agent sub-agents on the canvas, a live tracing/observability timeline, auto-provisioned built-in tools with import/export, per-environment tool variables, streamed evaluations, and per-user auth token forwarding.

apps/api/migrations/versions/0001_baseline.py

@@ -0,0 +1,27 @@
+"""baseline - full current schema
+
+Squash baseline: stamps the entire current schema via metadata.create_all (skips
+existing tables, so it's safe on an already-bootstrapped dev DB). Incremental
+migrations are added on top with `alembic revision --autogenerate`.
+
+Revision ID: 0001_baseline
+Revises:
+Create Date: 2026-06-14
+"""
+from alembic import op
+
+import forge.models  # noqa: F401 - register tables
+from forge.db.base import Base
+
+revision = "0001_baseline"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    Base.metadata.create_all(bind=op.get_bind())
+
+
+def downgrade() -> None:
+    Base.metadata.drop_all(bind=op.get_bind())