CB-WP-0048: conform task headings to the parser's shape

status.py resolves `## Task: <text>` immediately above a task block;
`## Task T00:` resolved to nothing and the gate said so.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

workplans/CB-WP-0048-a-configuration-not-a-variant.md

@@ -29,7 +29,7 @@ The kernel is not the obstacle: **four sites branch on the variant and
 each belongs to exactly one aspect** (ADR-0022 Context). The selector is
 the blob.
 
-## Task T00: the mirror is held by the gate
+## Task: the mirror is held by the gate
 
 ```task
 id: CB-WP-0048-T00
@@ -57,7 +57,7 @@ digest and the freshness check. The sibling walk has no such hole. The
 exposure is one file today (`PROVENANCE.md`, ours) — but this is F26's
 shape again and should be closed on its own terms.
 
-## Task T01: `Configuration` and `Rules`
+## Task: `Configuration` and `Rules`
 
 ```task
 id: CB-WP-0048-T01
@@ -80,7 +80,7 @@ between them.
   any test ran);
 - mutation-proven, each control against its own defect.
 
-## Task T02: legacy ids alias forever
+## Task: legacy ids alias forever
 
 ```task
 id: CB-WP-0048-T02
@@ -100,7 +100,7 @@ Per ADR-0022 D2, through the catalog's own `legacy_experiment_id`.
 - **the expansion comes from the catalog**, not a table in our source: a
   second copy of ground-game's mapping is F25's shape.
 
-## Task T03: the resolved configuration is recorded
+## Task: the resolved configuration is recorded
 
 ```task
 id: CB-WP-0048-T03
@@ -119,7 +119,7 @@ logs and panel cells carry the **resolved** module list.
 - **a bare field write cannot leave a module inert** — the H2 defect had
   three call sites and this is the generalisation of it.
 
-## Task T04: the page and the panels speak aspects
+## Task: the page and the panels speak aspects
 
 ```task
 id: CB-WP-0048-T04