docs(p9.7): isolate runtime presentation step

docs/runtime/p9_7/IMPLEMENTATION_PLAN.md

@@ -113,8 +113,10 @@ IN SCOPE: Hall Market composition, profession overlays, Reserve staging,
   contextual compare ribbon, route telegraphs, expanded battle actors/events,
   settlement and Relay states; parsed ScreenTouch; normal-render fixtures.
 OUT OF SCOPE: unrelated front door, final art/audio, H5 and native package.
-OWNED FILES: runtime/p9_3 controller and bounded presentation helpers/assets;
-  runtime/tests/p9_7 runtime/touch/capture tests; P9.7 status.
+OWNED FILES: one isolated runtime/p9_7 runtime controller plus bounded
+  presentation helpers/assets; runtime/tests/p9_7 runtime/touch/capture tests;
+  P9.7 status. P9.3 controller and main entry integration remain deferred to
+  Step 5 after this runtime surface is proven.
 ACCEPTANCE CHECKS: controls follow world objects and are >=48px; no repeated
   cards/forms; complete route uses Input.parse_input_event ScreenTouch with
   fallback/direct zero; representative frames are nonblank, bounded and causal;
@@ -182,6 +184,7 @@ NEXT STEP: Owner completes one uncoached playthrough and reports the earliest
 | P97-I04 | `OPEN_STEP_4` | New profession rows do not yet have final bespoke sprite sets. P9.7 may use clearly labeled source-bound rig overlays; final content production remains open. |
 | P97-I05 | `RESOLVED_STEP_1_AUTHORITY` | A Recruit with an empty starting slot contradicted generated-Recruit authority, and a Market-7 pool based only on unowned professions could exhaust. All nine fixed Recruit instances now carry one equipment instance, while duplicate professions remain legal. |
 | P97-I06 | `RESOLVED_STEP_3_THRESHOLD` | Content authority intentionally owns only three `3/4/3` boards, so Round 7 cannot invent a normal empty Market. Source `86e939c` opens a reload-stable `P97-MARKET-8-THRESHOLD` with preserved Company state, restored Relay and an explicit future-content lock. |
+| P97-I07 | `RESOLVED_STEP_4_ARCHITECTURE` | Editing the accepted 1,300-line P9.3 controller while building a new Market would couple old and new regressions. Step 4 uses one isolated P9.7 controller with accepted assets/helpers; Step 5 alone may bind the verified surface into the continuous main flow. |
 
 ## Current Evidence