fix: drop PyYAML dep so verify job pytest passes

Store doc rules in bin/docs_rules.json (stdlib json). test_check_docs no
longer fails in the simulator job that only installs simulator/requirements.txt.

bin/docs_rules.json

@@ -0,0 +1,42 @@
+{
+  "markdown_paths": [
+    "docs/**/*.md",
+    "README.md",
+    "CONTRIBUTING.md",
+    "AGENTS.md",
+    "simulator/README.md",
+    "prototype/README.md",
+    "infra/**/README.md"
+  ],
+  "glossary": {
+    "file": "docs/00-glossary.md"
+  },
+  "banned_link_targets": [
+    "03-storage-design.md"
+  ],
+  "glossary_section_anchors": [
+    "data--storage",
+    "swarm--robotics",
+    "infrastructure--delivery"
+  ],
+  "preferred_term_anchors": [
+    "t0--hot",
+    "t1--warm",
+    "t2--shared",
+    "t3--warehouse",
+    "t4--dev",
+    "source-of-truth",
+    "architecture-layer-1--ingestion",
+    "architecture-layer-2--storage-and-transform",
+    "architecture-layer-3--serving-and-sync",
+    "pipeline-stage",
+    "bulk-sync",
+    "offload",
+    "rclone",
+    "adr",
+    "asr"
+  ],
+  "readability": {
+    "forbid_bare_see_refs": true
+  }
+}