Recursive deploy ladder: Company + Org tiers, mesh mark, two-tier rail

Completes the scale ladder (single → team → company → org). Every tier is a
topology whose nodes are the tier below; running a parent recursively runs each
child's sub-topology down to the leaf claws.

Backend:
- migration 0011: companies/company_teams, orgs/org_companies, topology_runs.tier
- cm-db repos for companies + orgs (mirror teams)
- TurnRequest.attrs (forwarded from node.attrs) for child-id binding
- SubTopologyExecutor (recursive_exec.rs): a parent "turn" runs the child's
  sub-topology; durability via parent updated_at keepalive + cancel propagation
  + depth cap; boxed future breaks the org→company recursion
- topology_worker selects executor by job.tier
- routes: /api/companies, /api/orgs (create/list/get/run) + unified
  /api/structure/{level}/{id} for the zoom canvas

Frontend:
- MeshMark: node-mesh brand glyph (replaces the claw PNG), tier variants
- TopologyGraphView: optional onNodeClick/nodeMeta + dark-token theming
- StructureCanvas + Breadcrumb: one recursive zoom view for every tier
  (drill down on node click, breadcrumb up); TeamRunPanel extracted + shared
- two-tier Discord-style rail: StructureRail (mesh mark + org/company/team
  glyphs + tools popover + deploy + user) | RosterColumn (selected group's
  children, or your claws); SecondaryNav for cross-cutting tools
- ComposeWizard (company/org) wired into DeployWizard; /companies + /orgs pages

Co-Authored-By: Claude Opus 4.8 <[email protected]>

.sqlx/query-031ed78afa99d45546c7c679207c710790948596eff040704dd82ce14a93bd5d.json

@@ -0,0 +1,53 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT id, name, kind, graph, status, created_at FROM companies\n         WHERE id = $1 AND workspace_id = $2",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "kind",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "graph",
+        "type_info": "Jsonb"
+      },
+      {
+        "ordinal": 4,
+        "name": "status",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "created_at",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "031ed78afa99d45546c7c679207c710790948596eff040704dd82ce14a93bd5d"
+}