feat: ingest repository navigation projections

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a0230c-b06c-7641-808a-e191b6d1da49

hub_core/migrations/versions/0003_repository_navigation.py

@@ -0,0 +1,89 @@
+"""durable repository navigation projection
+
+Revision ID: 0003_repository_navigation
+Revises: 0002_runtime_ports
+Create Date: 2026-08-22
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0003_repository_navigation"
+down_revision: Union[str, None] = "0002_runtime_ports"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "runtime_repository_navigation_state",
+        sa.Column("projection_id", sa.String(80), primary_key=True),
+        sa.Column("projection_status", sa.String(20), nullable=False),
+        sa.Column("snapshot_id", sa.String(64), nullable=False, unique=True),
+        sa.Column(
+            "source_snapshot", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+        sa.Column("source_checked_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("rebuilt_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("content_hash", sa.String(64), nullable=False),
+        sa.Column("repository_count", sa.Integer(), nullable=False),
+        sa.Column("diagnostics", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+    )
+    op.create_table(
+        "runtime_repository_navigation_repositories",
+        sa.Column("repository_id", sa.String(36), primary_key=True),
+        sa.Column("slug", sa.String(120), nullable=False, unique=True),
+        sa.Column("lifecycle", sa.String(20), nullable=False),
+        sa.Column("primary_domain", sa.String(40), nullable=False),
+        sa.Column(
+            "secondary_domains", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+        sa.Column("category", sa.String(40), nullable=False),
+        sa.Column(
+            "capability_tags", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+        sa.Column(
+            "business_stake", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+        sa.Column(
+            "business_mechanics", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+        sa.Column("provenance", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+    )
+    op.create_index(
+        "ix_runtime_repository_navigation_repositories_slug",
+        "runtime_repository_navigation_repositories",
+        ["slug"],
+    )
+    op.create_index(
+        "ix_runtime_repository_navigation_repositories_lifecycle",
+        "runtime_repository_navigation_repositories",
+        ["lifecycle"],
+    )
+    op.create_index(
+        "ix_runtime_repository_navigation_repositories_primary_domain",
+        "runtime_repository_navigation_repositories",
+        ["primary_domain"],
+    )
+    op.create_index(
+        "ix_runtime_repository_navigation_repositories_category",
+        "runtime_repository_navigation_repositories",
+        ["category"],
+    )
+    op.create_table(
+        "runtime_repository_navigation_facets",
+        sa.Column("kind", sa.String(40), primary_key=True),
+        sa.Column("value", sa.String(120), primary_key=True),
+        sa.Column("repository_count", sa.Integer(), nullable=False),
+        sa.Column(
+            "repository_ids", postgresql.JSONB(astext_type=sa.Text()), nullable=False
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("runtime_repository_navigation_facets")
+    op.drop_table("runtime_repository_navigation_repositories")
+    op.drop_table("runtime_repository_navigation_state")