Narrow tier2 runtime split to template bank state

artifacts/exports/rt3-1.06/runtime-effect-kind8-tier2-named-availability-note.md

@@ -87,3 +87,94 @@ So the next Tier 2 recovery question is now tighter still:
   or cargo-membership/runtime-record reconstruction under
   `0x00437737 / 0x00412c10 / 0x00412bd0 / 0x00412d70 / 0x00412fb0`,
   rather than in the direct named availability bit for `Warehouse05` itself.
+
+## Nearest Single-Import Peer Check
+
+The same boundary now holds against the nearest single-import recipe peer too:
+
+- `Louisiana.gmp`
+- `South East USA.gmp`
+
+Direct `inspect-candidate-table` checks still keep the key port/warehouse rows aligned:
+
+- `Warehouse05`
+  - `Louisiana.gmp = 1`
+  - `South East USA.gmp = 1`
+- `Port01`
+  - `Louisiana.gmp = 1`
+  - `South East USA.gmp = 1`
+
+So even after the recipe-side frontier moved from “same coarse mode shape” to “same single-import
+family,” the direct named-availability table still does not provide the missing Tier 2 split for
+the shipped `5200 :: [7:0]` `Add Building Warehouse05` row.
+
+That leaves the same later owners as the honest next focus:
+
+- `0x00412d70` template-bank and runtime-record rebuild
+- `0x00411ce0 / 0x00411ee0` dependent mode-flag and cargo-summary refresh
+- `0x00412c10` latch refresh after those runtime records already exist
+
+## Port Versus Warehouse Runtime Roots
+
+One broader binary pass now closes the fixed-root ambiguity inside `0x00412d70`.
+
+Direct `objdump` over `RT3.exe` shows the two built-in format roots are:
+
+- `0x005c93d8 = "Warehouse%02d"`
+- `0x005c93e8 = "Port%02d"`
+
+And the candidate rebuild chooses between them exactly as:
+
+- if `[candidate+0xba] != 0`
+  - use `Port%02d`
+- else
+  - use `Warehouse%02d`
+
+So the later Tier 2 runtime-record frontier is no longer an abstract “two built-in roots” question.
+It is specifically:
+
+- how `0x00412d70` bank or template selection and the live availability bytes
+  `[candidate+0xba/+0xbb]` determine which rebuilt candidates land on the `Warehouse%02d` side
+  versus the `Port%02d` side
+- and why the `Warehouse%02d` side in `Louisiana.gmp` is the one that later lines up with the
+  shipped `5200 :: [7:0]` `Add Building Warehouse05` strip
+
+That also keeps the direct named-availability boundary honest:
+
+- `Warehouse05 = 1` in the fixed scenario table still does not explain the runtime split by itself
+- the next meaningful owner seam is the later port-versus-warehouse runtime-record rebuild under
+  `0x00412d70`, before `0x00412c10` mirrors anything into `[candidate+0x7ac]`
+
+## Writer-Side Split Above The Availability Bytes
+
+One more direct disassembly pass narrows that owner seam further.
+
+`structure_candidate_stream_load_runtime_record_and_rebuild_cargo_state` `0x004120b0` does
+rebuild a substantial portion of each live candidate record:
+
+- clears dependent runtime pointers and flags such as
+  `[candidate+0x79c/+0x7a0/+0x78c/+0x790/+0x794/+0x7b0]`
+- reads the fixed per-record stream fields at
+  `[candidate+0x04/+0x22/+0x26/+0x28/+0x2a/+0x2e/+0x32/+0x33]`
+- allocates and streams the packed `0xbc` descriptor array into `[candidate+0x37]`
+
+But in the checked `0x004120b0` body there is still **no** write to:
+
+- `[candidate+0xba]`
+- `[candidate+0xbb]`
+
+So the current strongest ownership split is now:
+
+- direct named-availability table `[state+0x66b2]` is not the missing differentiator by itself
+- per-record stream-load `0x004120b0` is also not where the port-versus-warehouse availability
+  bytes are authored
+- the surviving writer-side frontier is the later template-bank path in `0x00412d70`, where the
+  imported record is cloned or reused against one bank-qualified live candidate before the runtime
+  descriptor and membership rebuilds run
+
+That makes the next Tier 2 question more concrete still:
+
+- how the bank-qualified template source selected under `[candidate+0xba]` versus `[candidate+0xbb]`
+  seeds the later `Warehouse%02d` side in `Louisiana.gmp`
+- and whether that preserved bank/template state is the real bridge from the minimal recipe cluster
+  to the shipped `5200 :: [7:0]` `Add Building Warehouse05` row