dangernoodle-io / breadboard / 28461307775

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refactor(bb_mem): route remaining raw allocations through the bb_mem facade + add raw-allocator lint rule (#611)

- migrate every malloc/calloc/free in platform/espidf/ and components/ to
  bb_malloc_prefer_spiram/bb_calloc_prefer_spiram/bb_mem_free (46 sites,
  26 files); add #include "bb_mem.h" where missing
- migrate free(body) in bb_sensors, bb_nv_delete_routes, bb_telemetry_routes
  for bodies returned by bb_http_req_recv_body_alloc
- fix cjson-owned free(str) in bb_health, bb_info, bb_manifest_register,
  bb_wifi_routes, bb_sensors to use bb_json_free_str (correct api)
- add _check_raw_allocator lint rule (error severity, profiles=all) scanning
  platform/espidf/** and components/**; skips test/ and bb_mem.c; supports
  path/path:line allowlist from bbtool.toml
- allowlist platform/espidf/bb_json/bb_json_cjson.c and host variant in
  bbtool.toml (intentional raw alloc in the cjson adapter stack-guard path)
- fix test_lint_integration.py to load real bbtool.toml config so allowlists
  are respected by the integration test
- add TestRawAllocator (10 cases) to test_lint_rules.py

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

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