Own Web legacy platform services explicitly

docs/modernization/debt.md

@@ -18,6 +18,15 @@ agent or engineer to remove them without reconstructing context from chat.
 
 ## Reductions
 
+- 2026-06-17: `DEBT-0017`/`DEBT-0050`/`DEBT-0053`/`DEBT-0057` were narrowed
+  again. `src/platform_legacy/legacy_platform_services.*` now takes an
+  explicit `WebPlatformServices*` dependency through
+  `create_platform_services(...)`, `webgl/src/main.cpp` now threads its owned
+  Web service directly into that legacy adapter, and
+  `src/platform_legacy/legacy_platform_state.*` no longer carries the retained
+  `active_legacy_web_platform_services()` / `try_*legacy_web*` dispatch layer;
+  retained non-Windows adapter execution still exists, but the live WebGL path
+  no longer depends on a legacy Web fallback singleton-style bridge.
 - 2026-06-17: `DEBT-0017` was narrowed again.
   `src/platform_legacy/legacy_platform_services.*` no longer exposes the dead
   `pp::platform::legacy::platform_services()` fallback singleton; Linux,

docs/modernization/roadmap.md

@@ -70,6 +70,15 @@ What is already real:
 - `pp_app_core`
 
 Latest slice:
+- `src/platform_legacy/legacy_platform_services.*` now takes an explicit
+  `WebPlatformServices*` dependency through `create_platform_services(...)`
+  instead of routing WebGL publish/flush/default-canvas/save-prepared-file
+  behavior through retained `try_*legacy_web*` fallback helpers.
+- `webgl/src/main.cpp` now creates the owned Web service first and threads it
+  directly into its owned legacy `PlatformServices` instance.
+- `src/platform_legacy/legacy_platform_state.*` is down to the retained Web
+  service factory only; the old `active_legacy_web_platform_services()` and
+  `try_*legacy_web*` dispatch layer are gone.
 - `src/platform_legacy/legacy_platform_services.*` no longer exposes the dead
   `pp::platform::legacy::platform_services()` singleton accessor.
 - Linux, WebGL, and Android were already on owned

docs/modernization/tasks.md

@@ -78,6 +78,15 @@ Completed, blocked, and superseded task history moved to
   the queue is now ordered by code movement instead.
 
 Current slice:
+- `src/platform_legacy/legacy_platform_services.*` now takes an explicit
+  `WebPlatformServices*` dependency through `create_platform_services(...)`
+  instead of routing WebGL publish/flush/default-canvas/save-prepared-file
+  behavior through retained `try_*legacy_web*` fallback helpers.
+- `webgl/src/main.cpp` now creates the owned Web service first and threads it
+  directly into its owned legacy `PlatformServices` instance.
+- `src/platform_legacy/legacy_platform_state.*` is down to the retained Web
+  service factory only; the old `active_legacy_web_platform_services()` and
+  `try_*legacy_web*` dispatch layer are gone.
 - `src/platform_legacy/legacy_platform_services.*` no longer exposes the dead
   `pp::platform::legacy::platform_services()` singleton accessor.
 - Linux, WebGL, and Android were already on owned
@@ -194,9 +203,9 @@ Current slice:
   singleton.
 - `PanoPainter-OSX/main.cpp` and `PanoPainter/GameViewController.m` now seed
   Apple-owned storage paths directly.
-- `src/platform_legacy/legacy_platform_state.*` now exposes
-  `create_legacy_web_platform_services()` plus an explicit binding hook for the
-  retained Web service surface.
+- `src/platform_legacy/legacy_platform_state.*` now only exposes
+  `create_legacy_web_platform_services()` for the retained default Web service
+  implementation.
 - `webgl/src/main.cpp` now owns and binds the Web platform-services
   implementation explicitly instead of relying only on the retained fallback
   object in legacy platform state.