feat(tcs): observe real macOS object tree read-only

build/TCS-HOST-STRUCTURED-OBJECT-TREE-OBSERVATION-0001.human.en-US.md

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+# Host Structured Object Tree Read Only Observation Protocol · Human Engineering Language (English)
+
+> This is an English reading projection of validated native TCS/HLDP source. It is not a new canonical source and grants no execution authority.
+
+## What this is
+
+This is a **protocol** declaration with identifier `TCS-HOST-STRUCTURED-OBJECT-TREE-OBSERVATION-0001` and version `0.1.0`. The projector validates it with the Stage-1 compiler before changing its reading order.
+
+## Who is here
+
+The native source does not provide this field; the projector does not guess.
+
+## Why this started
+
+- **source**  `source`
+  - **comparison**：PASS_TCS_BRAIN_AND_SHARED_COMPUTER_REQUIRE_SAME_CANONICAL_WORLD_WITHOUT_OLD_LANGUAGE_SEMANTIC_AUTHORITY  `source.comparison`
+  - **engineering_anchor_sha256**：a3dd8dbd2203b631bdb23f2693eb314d4ef86af68fdeaee8835e3cf0861ddd23  `source.engineering_anchor_sha256`
+  - **reasoning_anchor_sha256**：987600f9f2a52821425d9e5a3d3b5350415912588cf522ef3384d282cb0a26bf  `source.reasoning_anchor_sha256`
+
+## What changed
+
+The native source does not provide this field; the projector does not guess.
+
+## How it will execute
+
+This is a non-executable declaration and has no action graph.
+
+## Boundaries and exception handling
+
+- **failure**  `failure`
+  - **accessibility_not_granted**：TCS-HOST-E4003  `failure.accessibility_not_granted`
+  - **fail closed**：yes  `failure.fail_closed`
+  - **invalid_scope**：TCS-E4002  `failure.invalid_scope`
+  - **observation_failed**：TCS-HOST-E5102  `failure.observation_failed`
+  - **unsupported_platform**：TCS-E2101  `failure.unsupported_platform`
+  - **write_or_action_request**：TCS-E4001  `failure.write_or_action_request`
+
+## How completion is proven
+
+The native source does not provide this field; the projector does not guess.
+
+## Where to continue next time
+
+The native source does not provide this field; the projector does not guess.
+
+## Source and verification
+
+- **Native declaration identifier**: `TCS-HOST-STRUCTURED-OBJECT-TREE-OBSERVATION-0001`
+- **Native declaration kind**: `PROTOCOL`
+- **TCS source SHA-256**: `c2cffe724020e9d616743303858df28df6dd06bf412dc4af885efa5e7b19f52b`
+- **Validation compiler**: `TCS-COMPILER-STAGE6-HOST-OBJECT-OBSERVATION-0001`
+- **Projection protocol**: `GLS-HLDP-HUMAN-ENGINEERING-PROJECTION-0001`
+
+## Complete native structure cross-reference
+
+All top-level structures and field paths are retained below so a reader can audit whether the projection omitted information.
+
+- **boundary**  `boundary`
+  - **no_control_permission_inference**：yes  `boundary.no_control_permission_inference`
+  - **no_old_language_ui_or_product_rule**：yes  `boundary.no_old_language_ui_or_product_rule`
+  - **no_real_action_completion_claim**：yes  `boundary.no_real_action_completion_claim`
+  - **rust_swift_objc_or_os_api_is_mechanical_projection_only**：yes  `boundary.rust_swift_objc_or_os_api_is_mechanical_projection_only`
+  - **tcs_is_product_semantic_source**：yes  `boundary.tcs_is_product_semantic_source`
+- **failure**  `failure`
+  - **accessibility_not_granted**：TCS-HOST-E4003  `failure.accessibility_not_granted`
+  - **fail closed**：yes  `failure.fail_closed`
+  - **invalid_scope**：TCS-E4002  `failure.invalid_scope`
+  - **observation_failed**：TCS-HOST-E5102  `failure.observation_failed`
+  - **unsupported_platform**：TCS-E2101  `failure.unsupported_platform`
+  - **write_or_action_request**：TCS-E4001  `failure.write_or_action_request`
+- **header**  `header`
+  - **canonical source path**：language/protocols/TCS-HOST-STRUCTURED-OBJECT-TREE-OBSERVATION-0001.tcs  `header.canonical_uri`
+  - **compatibility**  `header.compatibility`
+    - TCS-COMPILER-STAGE6-HOST-OBJECT-OBSERVATION-0001
+    - GIR/1
+  - **language**：TCS/0.1  `header.language`
+  - **lifecycle**：CANDIDATE  `header.lifecycle`
+  - **English name**：Host Structured Object Tree Read Only Observation Protocol  `header.name_en`
+  - **Chinese name**：宿主结构化对象树只读观察协议  `header.name_zh`
+  - **profile**：HLDP-NP/1  `header.profile`
+  - **schema**：tcs.protocol/v1  `header.schema`
+  - **version**：0.1.0  `header.version`
+- **identity**  `identity`
+  - **coordinates_are_identity**：no  `identity.coordinates_are_identity`
+  - **missing_role**：PRESERVE_UNKNOWN_NO_GUESS  `identity.missing_role`
+  - **object_id**：SHA256_HOST_SNAPSHOT_PID_AX_PATH_ROLE_AND_SUBROLE  `identity.object_id`
+  - **scope**：ONE_SNAPSHOT_ONE_HOST_ADAPTER  `identity.scope`
+  - **screenshot_is_identity**：no  `identity.screenshot_is_identity`
+  - **snapshot_id**：SHA256_HOST_BINARY_PID_AND_OBSERVATION_TIME  `identity.snapshot_id`
+  - **tree_hash**：SHA256_CANONICAL_OBSERVED_TREE  `identity.tree_hash`
+- **output**  `output`
+  - **desktop_action_attempted**：no  `output.desktop_action_attempted`
+  - **host_semantic_authority**：no  `output.host_semantic_authority`
+  - **network_action**：no  `output.network_action`
+  - **permission_prompted**：no  `output.permission_prompted`
+  - **states**  `output.states`
+    - OBSERVED_TARGET_READBACK_VERIFIED
+    - HALTED_ACCESSIBILITY_PERMISSION_NOT_GRANTED
+    - HALTED_NO_FOCUSED_APPLICATION
+    - HALTED_OBSERVATION_ERROR
+  - **tree_hash_required_when_observed**：yes  `output.tree_hash_required_when_observed`
+- **permission**  `permission`
+  - **current_stage_may_execute_ax_action**：no  `permission.current_stage_may_execute_ax_action`
+  - **current_stage_may_open_system_settings**：no  `permission.current_stage_may_open_system_settings`
+  - **current_stage_may_read_trust_state**：yes  `permission.current_stage_may_read_trust_state`
+  - **current_stage_may_request_tcc_prompt**：no  `permission.current_stage_may_request_tcc_prompt`
+  - **separate_direct_human_permission_required_after_denial**：yes  `permission.separate_direct_human_permission_required_after_denial`
+- **primitive**  `primitive`
+  - **first_adapter**：MACOS_ACCESSIBILITY  `primitive.first_adapter`
+  - **host_role**：MECHANICAL_READ_ONLY_ADAPTER  `primitive.host_role`
+  - **natural_language_interpretation**：no  `primitive.natural_language_interpretation`
+  - **operation**：CORE.OBSERVE_HOST_OBJECT_TREE  `primitive.operation`
+  - **product_action**：no  `primitive.product_action`
+  - **semantic_owner**：CALLING_TCS_GIR  `primitive.semantic_owner`
+- **privacy**  `privacy`
+  - **local_raw_diagnostic_if_created**：MOVE_TO_ACCOUNT_ONLY_PRIVATE_EVIDENCE_AND_NEVER_REMOTE  `privacy.local_raw_diagnostic_if_created`
+  - **raw_accessibility_tree_committed_to_git**：no  `privacy.raw_accessibility_tree_committed_to_git`
+  - **title_plaintext_persisted**：no  `privacy.title_plaintext_persisted`
+  - **title_projection**  `privacy.title_projection`
+    - TITLE_PRESENT
+    - TITLE_SHA256
+  - **value_plaintext_persisted**：no  `privacy.value_plaintext_persisted`
+  - **value_projection**：VALUE_KIND_ONLY  `privacy.value_projection`
+- **request**  `request`
+  - **attributes**  `request.attributes`
+    - ROLE
+    - SUBROLE
+    - TITLE_HASH
+    - VALUE_KIND
+    - ENABLED
+    - FOCUSED
+    - CHILDREN
+  - **max_depth_max**：4  `request.max_depth_max`
+  - **max_depth_min**：0  `request.max_depth_min`
+  - **max_nodes_max**：512  `request.max_nodes_max`
+  - **max_nodes_min**：1  `request.max_nodes_min`
+  - **mode**：READ_ONLY  `request.mode`
+  - **platform**：MACOS  `request.platform`
+  - **root**：FOCUSED_APPLICATION  `request.root`
+  - **trust_prompt**：no  `request.trust_prompt`
+- **source**  `source`
+  - **comparison**：PASS_TCS_BRAIN_AND_SHARED_COMPUTER_REQUIRE_SAME_CANONICAL_WORLD_WITHOUT_OLD_LANGUAGE_SEMANTIC_AUTHORITY  `source.comparison`
+  - **engineering_anchor_sha256**：a3dd8dbd2203b631bdb23f2693eb314d4ef86af68fdeaee8835e3cf0861ddd23  `source.engineering_anchor_sha256`
+  - **reasoning_anchor_sha256**：987600f9f2a52821425d9e5a3d3b5350415912588cf522ef3384d282cb0a26bf  `source.reasoning_anchor_sha256`
+
+---
+
+This page changes only the reading order; it does not change TCS/HLDP semantics.