resources: XCE_RESF_BUILTIN 从未被置位 — resources.yaml 加 builtin: true 声明式键

XCE_RESF_BUILTIN (0x01) 在生产链路上从未被任何一层置位：全树只有 types.h
定义、scheduler repl_info.c 显示表、一个测试 fixture 三处引用。worker
init_builtin_load_indices()（mem/io/r1m…）、controller add_hostattrs_resvals()/
set_host_slots() 硬编码生产这些资源的值，但定义的 flags 从 YAML→capnp→wire
全程没人打这个位——CLI 的 BUILTIN 列对 mem/io/slots 等恒显 false，与 extlic
等用户资源无法区分。

- resources.schema.json（+xceadmin 打包副本，构建时从 src/configs/schema
  同步）：加 builtin: boolean 键
- mapping.py：RESOURCE_FLAG_BUILTIN=0x01，_build_resource 映射 builtin:true
  （与 consumable/release 同模式：缺省/false 不置位）
- build.py dump：补渲染 builtin=True；顺手补同样一直缺失的 external=True
  （此前 EXTERNAL 池 dump 只显示 shared=true）
- src/configs/resources.yaml：20 个硬编码生产者资源（slots + 11 load index
  + 8 host attributes）声明 builtin: true
- golden fixture full/expected.bin 相应再生（6696→6856B，diff 恰为 20 行
  builtin=True，非 builtin 行 0 差异）

验证：xceadmin 389 测试全绿（dev venv + meson build.dbg 各一遍）；t1 实证：
树内 venv 重建 cluster.bin（与 live 逐行比对确认 delta 仅 builtin 20 行）→
config push gen=17 → apiserver 重启拾取（定义 store 只吃 join 时 config
push，激活只 re-push scheduler）→ xcecli definition list -l mem/io/slots
BUILTIN=true，extlic false、distribution/extlic 值/liccheck 作业 RUN→DONE
全链正常，5 daemon 健康。

Co-Authored-By: Claude Code <noreply@anthropic.com>

src/xceadmin/tests/test_mapping.py

@@ -176,6 +176,29 @@ def test_map_list_section_resources_populates_mapped_fields_only(cluster_config)
     assert r0.lastReport == 0
 
 
+def test_map_list_section_resources_builtin_flag(cluster_config):
+    """``builtin: true`` (resources.yaml) -> XCE_RESF_BUILTIN (0x01) OR'd
+    on top of the other bits: the load indices (mem/io/r1m...) and host
+    attributes (type/model/maxmem...) are produced by hardcoded worker/
+    controller reporters, and the flag tells them apart from user-declared
+    resources (the CLI's BUILTIN column renders it). Absent/false must
+    stay 0 -- the same convention as consumable/release.
+    """
+    items = [
+        {"name": "mem", "type": "numeric", "interval": 60,
+         "consumable": True, "builtin": True, "description": "memory"},
+        {"name": "mylic", "type": "numeric", "consumable": True,
+         "builtin": False, "description": "user pool"},
+        {"name": "plain", "type": "numeric"},  # builtin absent
+    ]
+    mapping.map_list_section(_spec_for("resources"), items, cluster_config)
+
+    r0, r1, r2 = cluster_config.resources
+    assert r0.flags == 0x80 | 0x01  # CONSUMABLE | BUILTIN
+    assert r1.flags == 0x80         # explicit false -> no BUILTIN bit
+    assert r2.flags == 0            # absent -> no BUILTIN bit
+
+
 def test_map_list_section_noop_on_empty_or_missing_items(cluster_config):
     mapping.map_list_section(_spec_for("resources"), [], cluster_config)
     mapping.map_list_section(_spec_for("resources"), None, cluster_config)
@@ -307,6 +330,18 @@ def test_map_list_section_resourcemap_real_repo_configs(cluster_config):
     for name in ("staticres1", "staticres2", "staticres3", "host_quota"):
         assert by_name[name].flags & (0x08 | 0x04) == 0
 
+    # builtin:true resources (the worker load indices + host attributes the
+    # repo config declares) carry XCE_RESF_BUILTIN; user-declared shapes
+    # (staticres*, extlic) do not.
+    for name in ("slots", "mem", "r1m", "r15m", "r15s", "ut", "pg", "ls", "it",
+                 "swp", "io", "tmp", "type", "model", "cpuf", "maxcpus",
+                 "maxmem", "maxswap", "maxtmp", "ndisks"):
+        assert by_name[name].flags & 0x01 == 0x01, f"{name} missing BUILTIN"
+    for name in ("dynres1", "dynres2", "staticres1", "staticres2", "staticres3",
+                 "staticres4", "res1", "sres1", "bigmem", "strres1", "strres2",
+                 "host_quota", "gstring", "extlic"):
+        assert by_name[name].flags & 0x01 == 0, f"{name} unexpectedly BUILTIN"
+
 
 # ---------------------------------------------------------------------------
 # map_list_section: users.yaml/hosts.yaml -> ugroups/hgroups (named groups)