test(python): record native V3 delivery provenance

Regenerate advanced and restart expectations through the shipped macOS arm64 SEA runtime built from 0521815d45. Real delivery-accepted events now record sessionFormatVersion 3 in the five V3 logs and advanced SDK notifications. Restart result.json and requests.json regenerate identically. Preserve all five V2 predecessors byte-for-byte from b2b300f9; no production, migration, launcher, or test changes.

Evidence (macOS arm64): pnpm exec tsx scripts/build-exe-for-python-sdk.ts --targets node24-macos-arm64 passed, including the full pnpm build. file dist-exe/deepseek-harness-sdk-runtime-macos-arm64 reports Mach-O 64-bit executable arm64.

For each SCENARIO=sdk-snapshot,sdk-restart: PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=python/sdk/src:python/sdk-runtime/src /Users/cty/dsh-deploy/.agents/worktrees/sp-kv-sdk-evidence/tmp/py-sdk-venv/bin/python scripts/smoke-python-runtime.py --exe dist-exe/deepseek-harness-sdk-runtime-macos-arm64 --scenario SCENARIO --update-snapshots passed; the same two commands without --update-snapshots passed.

PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=python/sdk/src:python/sdk-runtime/src uv run --no-project --python /Users/cty/.local/share/uv/python/cpython-3.14.5-macos-aarch64-none/bin/python3 --with pytest --with pydantic>=2.12,<3 python -m pytest python/sdk/tests/test_smoke_model.py -q: 28 passed. Earlier helper invocations lacked pytest or SDK imports; corrected environment passed without source changes. git diff --quiet b2b300f9 -- scripts/snapshots/python-sdk-single-exe/**/*.v2.jsonl and git diff --cached --check passed.

scripts/snapshots/python-sdk-single-exe/advanced/result.json

@@ -193,7 +193,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 12
       }
     },
@@ -361,7 +361,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 18
       }
     },
@@ -598,7 +598,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 26
       }
     },
@@ -797,7 +797,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 34
       }
     },
@@ -961,7 +961,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 40
       }
     },
@@ -1165,7 +1165,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 50
       }
     },
@@ -1396,7 +1396,7 @@
       "time": 0,
       "data": {
         "sessionId": "{{parent}}",
-        "sessionFormatVersion": 2,
+        "sessionFormatVersion": 3,
         "throughSeq": 58
       }
     },
@@ -1839,7 +1839,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 12
           }
         }
@@ -2043,7 +2043,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 18
           }
         }
@@ -2328,7 +2328,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 26
           }
         }
@@ -2575,7 +2575,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 34
           }
         }
@@ -2999,7 +2999,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{child-1}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 13
           }
         }
@@ -3231,7 +3231,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 40
           }
         }
@@ -3687,7 +3687,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{child-2}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 13
           }
         }
@@ -3950,7 +3950,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 50
           }
         }
@@ -4229,7 +4229,7 @@
           "time": 0,
           "data": {
             "sessionId": "{{parent}}",
-            "sessionFormatVersion": 2,
+            "sessionFormatVersion": 3,
             "throughSeq": 58
           }
         }

scripts/snapshots/python-sdk-single-exe/advanced/session.1.v3.jsonl

@@ -13,7 +13,7 @@
 {"type":"session/title","data":{"title":"Reply with exactly DIRECT_CHILD_OK and","messageSeqs":[9],"source":{"kind":"fallback"}}}
 {"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"smoke-model","reasoningEffort":"high","maxTokens":256000},"adapterDefaults":{"maxTokens":true},"tools":["cordis_define","cordis_inspect_list","cordis_inspect_query","cordis_inspect_self","cordis_run","cordis_stop","cordis_undefine","job_kill","job_list","job_output","run_code","snapshot_double","subagent","workflow"]},"reason":"initial"}}
 {"type":"request/context","data":{"provider":"deepseek-official","model":"smoke-model","contextWindow":1000000}}
-{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{child-1}}","sessionFormatVersion":2,"throughSeq":13}}
+{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{child-1}}","sessionFormatVersion":3,"throughSeq":13}}
 {"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"DIRECT_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"smoke-model"},"id":"{{messageId}}"},"usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6},"stream":[{"type":"chunk","time":0,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":0,"index":0,"dt":[],"texts":["DIRECT_CHILD_OK"]},{"type":"chunk","time":0,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DIRECT_CHILD_OK"}}},{"type":"chunk","time":0,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6}}},{"type":"chunk","time":0,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":1}}
 {"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}

scripts/snapshots/python-sdk-single-exe/advanced/session.2.v3.jsonl

@@ -13,7 +13,7 @@
 {"type":"session/title","data":{"title":"Reply with exactly WORKFLOW_CHILD_OK and","messageSeqs":[9],"source":{"kind":"fallback"}}}
 {"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"smoke-model","reasoningEffort":"high","maxTokens":256000},"adapterDefaults":{"maxTokens":true},"tools":["cordis_define","cordis_inspect_list","cordis_inspect_query","cordis_inspect_self","cordis_run","cordis_stop","cordis_undefine","job_kill","job_list","job_output","run_code","snapshot_double","subagent","workflow"]},"reason":"initial"}}
 {"type":"request/context","data":{"provider":"deepseek-official","model":"smoke-model","contextWindow":1000000}}
-{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{child-2}}","sessionFormatVersion":2,"throughSeq":13}}
+{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{child-2}}","sessionFormatVersion":3,"throughSeq":13}}
 {"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"WORKFLOW_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"smoke-model"},"id":"{{messageId}}"},"usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6},"stream":[{"type":"chunk","time":0,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":0,"index":0,"dt":[],"texts":["WORKFLOW_CHILD_OK"]},{"type":"chunk","time":0,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"WORKFLOW_CHILD_OK"}}},{"type":"chunk","time":0,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6}}},{"type":"chunk","time":0,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":1}}
 {"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}

scripts/snapshots/python-sdk-single-exe/restart/session.1.v3.jsonl

@@ -12,7 +12,7 @@
 {"type":"session/title","data":{"title":"Complete the first isolated Python","messageSeqs":[8],"source":{"kind":"fallback"}}}
 {"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"smoke-model","maxTokens":256000,"reasoningEffort":"high"},"adapterDefaults":{"reasoningEffort":true,"maxTokens":true},"tools":["cordis_define","cordis_inspect_list","cordis_inspect_query","cordis_inspect_self","cordis_run","cordis_stop","cordis_undefine","job_kill","job_list","job_output","run_code","subagent","workflow"]},"reason":"initial"}}
 {"type":"request/context","data":{"provider":"deepseek-official","model":"smoke-model","contextWindow":1000000}}
-{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{session-1}}","sessionFormatVersion":2,"throughSeq":12}}
+{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{session-1}}","sessionFormatVersion":3,"throughSeq":12}}
 {"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"PROCESS_ONE_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"smoke-model"},"id":"{{messageId}}"},"usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6},"stream":[{"type":"chunk","time":0,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":0,"index":0,"dt":[],"texts":["PROCESS_ONE_OK"]},{"type":"chunk","time":0,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"PROCESS_ONE_OK"}}},{"type":"chunk","time":0,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6}}},{"type":"chunk","time":0,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":1}}
 {"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}

scripts/snapshots/python-sdk-single-exe/restart/session.2.v3.jsonl

@@ -12,7 +12,7 @@
 {"type":"session/title","data":{"title":"Complete the second isolated Python","messageSeqs":[8],"source":{"kind":"fallback"}}}
 {"type":"request/header","data":{"header":{"config":{"provider":"deepseek-official","model":"smoke-model","maxTokens":256000,"reasoningEffort":"high"},"adapterDefaults":{"reasoningEffort":true,"maxTokens":true},"tools":["cordis_define","cordis_inspect_list","cordis_inspect_query","cordis_inspect_self","cordis_run","cordis_stop","cordis_undefine","job_kill","job_list","job_output","run_code","subagent","workflow"]},"reason":"initial"}}
 {"type":"request/context","data":{"provider":"deepseek-official","model":"smoke-model","contextWindow":1000000}}
-{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{session-2}}","sessionFormatVersion":2,"throughSeq":12}}
+{"type":"session-log-deepseek/delivery-accepted","data":{"sessionId":"{{session-2}}","sessionFormatVersion":3,"throughSeq":12}}
 {"type":"assistant/message","data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"PROCESS_TWO_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"smoke-model"},"id":"{{messageId}}"},"usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6},"stream":[{"type":"chunk","time":0,"chunk":{"type":"block-start","index":0,"blockType":"text"}},{"type":"text-chunks","time0":0,"index":0,"dt":[],"texts":["PROCESS_TWO_OK"]},{"type":"chunk","time":0,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"PROCESS_TWO_OK"}}},{"type":"chunk","time":0,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3,"totalTokens":6}}},{"type":"chunk","time":0,"chunk":{"type":"finish","reason":{"kind":"stop"}}}]},"surfaceOp":"append"}
 {"type":"step/end","data":{"turn":1,"step":1}}
 {"type":"turn/end","data":{"turn":1,"reason":{"kind":"completed"}}}