fix(form-compile): interpolate \$script:formatVersion in <Form> header

Third victim of the d155086 single-quote regression that 037062c
missed. Both <Form> header emissions at lines 1130 and 1140 used
`X '...version="$($script:formatVersion)"...'` — single-quoted, so
the literal text `$($script:formatVersion)` landed in the output
XML instead of the detected version number.

The bug was masked for a week because:
1. form-compile runner tests weren't rerun against the broken script
   after d155086 (snapshots still showed the pre-regression
   `version="2.17"` hardcode)
2. verify-snapshots was already red on form-compile for other reasons
   (P2 XDTO errors in some cases), so nobody noticed the wholesale
   script breakage
3. The .py port uses an f-string and was never broken

Found while auditing whether 037062c was complete — the earlier grep
for `'...\$formatVersion...'` single-line patterns had missed this
because `$($script:formatVersion)` is a subexpression-in-string form
that wasn't in the grep pattern.

Fix: convert both X calls to double-quoted strings with backtick-
escaped inner quotes, matching the 037062c pattern for
role-compile/subsystem-compile. Same approach, same precedent.

Bumped form-compile.ps1 v1.2→v1.3.

Verification:
- runner --filter form-compile (PS1): 0/10 → 10/10
- runner --filter form-compile --runtime python: 10/10 (dual-port clean)
- verify-snapshots --skill form-compile: surfaced from fully-masked
  to 9/10 (only catalog-form still fails — real P2 XDTO issue, not
  \$formatVersion)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/form-compile/scripts/form-compile.ps1

@@ -1,4 +1,4 @@
-# form-compile v1.2 — Compile 1C managed form from JSON
+# form-compile v1.3 — Compile 1C managed form from JSON
 # Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 param(
 	[Parameter(Mandatory)]
@@ -1127,7 +1127,7 @@ if ($def.title) {
 
 # Header
 X '<?xml version="1.0" encoding="UTF-8"?>'
-X '<Form xmlns="http://v8.1c.ru/8.3/xcf/logform" xmlns:app="http://v8.1c.ru/8.2/managed-application/core" xmlns:cfg="http://v8.1c.ru/8.1/data/enterprise/current-config" xmlns:dcscor="http://v8.1c.ru/8.1/data-composition-system/core" xmlns:dcssch="http://v8.1c.ru/8.1/data-composition-system/schema" xmlns:dcsset="http://v8.1c.ru/8.1/data-composition-system/settings" xmlns:ent="http://v8.1c.ru/8.1/data/enterprise" xmlns:lf="http://v8.1c.ru/8.2/managed-application/logform" xmlns:style="http://v8.1c.ru/8.1/data/ui/style" xmlns:sys="http://v8.1c.ru/8.1/data/ui/fonts/system" xmlns:v8="http://v8.1c.ru/8.1/data/core" xmlns:v8ui="http://v8.1c.ru/8.1/data/ui" xmlns:web="http://v8.1c.ru/8.1/data/ui/colors/web" xmlns:win="http://v8.1c.ru/8.1/data/ui/colors/windows" xmlns:xr="http://v8.1c.ru/8.3/xcf/readable" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="$($script:formatVersion)">'
+X "<Form xmlns=`"http://v8.1c.ru/8.3/xcf/logform`" xmlns:app=`"http://v8.1c.ru/8.2/managed-application/core`" xmlns:cfg=`"http://v8.1c.ru/8.1/data/enterprise/current-config`" xmlns:dcscor=`"http://v8.1c.ru/8.1/data-composition-system/core`" xmlns:dcssch=`"http://v8.1c.ru/8.1/data-composition-system/schema`" xmlns:dcsset=`"http://v8.1c.ru/8.1/data-composition-system/settings`" xmlns:ent=`"http://v8.1c.ru/8.1/data/enterprise`" xmlns:lf=`"http://v8.1c.ru/8.2/managed-application/logform`" xmlns:style=`"http://v8.1c.ru/8.1/data/ui/style`" xmlns:sys=`"http://v8.1c.ru/8.1/data/ui/fonts/system`" xmlns:v8=`"http://v8.1c.ru/8.1/data/core`" xmlns:v8ui=`"http://v8.1c.ru/8.1/data/ui`" xmlns:web=`"http://v8.1c.ru/8.1/data/ui/colors/web`" xmlns:win=`"http://v8.1c.ru/8.1/data/ui/colors/windows`" xmlns:xr=`"http://v8.1c.ru/8.3/xcf/readable`" xmlns:xs=`"http://www.w3.org/2001/XMLSchema`" xmlns:xsi=`"http://www.w3.org/2001/XMLSchema-instance`" version=`"$($script:formatVersion)`">"
 
 # Oops — Title was emitted before header. Need to fix the order.
 # Actually, let me restructure: build the body into a separate buffer, then assemble
@@ -1137,7 +1137,7 @@ $script:xml = New-Object System.Text.StringBuilder 8192
 $script:nextId = 1
 
 X '<?xml version="1.0" encoding="UTF-8"?>'
-X '<Form xmlns="http://v8.1c.ru/8.3/xcf/logform" xmlns:app="http://v8.1c.ru/8.2/managed-application/core" xmlns:cfg="http://v8.1c.ru/8.1/data/enterprise/current-config" xmlns:dcscor="http://v8.1c.ru/8.1/data-composition-system/core" xmlns:dcssch="http://v8.1c.ru/8.1/data-composition-system/schema" xmlns:dcsset="http://v8.1c.ru/8.1/data-composition-system/settings" xmlns:ent="http://v8.1c.ru/8.1/data/enterprise" xmlns:lf="http://v8.1c.ru/8.2/managed-application/logform" xmlns:style="http://v8.1c.ru/8.1/data/ui/style" xmlns:sys="http://v8.1c.ru/8.1/data/ui/fonts/system" xmlns:v8="http://v8.1c.ru/8.1/data/core" xmlns:v8ui="http://v8.1c.ru/8.1/data/ui" xmlns:web="http://v8.1c.ru/8.1/data/ui/colors/web" xmlns:win="http://v8.1c.ru/8.1/data/ui/colors/windows" xmlns:xr="http://v8.1c.ru/8.3/xcf/readable" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="$($script:formatVersion)">'
+X "<Form xmlns=`"http://v8.1c.ru/8.3/xcf/logform`" xmlns:app=`"http://v8.1c.ru/8.2/managed-application/core`" xmlns:cfg=`"http://v8.1c.ru/8.1/data/enterprise/current-config`" xmlns:dcscor=`"http://v8.1c.ru/8.1/data-composition-system/core`" xmlns:dcssch=`"http://v8.1c.ru/8.1/data-composition-system/schema`" xmlns:dcsset=`"http://v8.1c.ru/8.1/data-composition-system/settings`" xmlns:ent=`"http://v8.1c.ru/8.1/data/enterprise`" xmlns:lf=`"http://v8.1c.ru/8.2/managed-application/logform`" xmlns:style=`"http://v8.1c.ru/8.1/data/ui/style`" xmlns:sys=`"http://v8.1c.ru/8.1/data/ui/fonts/system`" xmlns:v8=`"http://v8.1c.ru/8.1/data/core`" xmlns:v8ui=`"http://v8.1c.ru/8.1/data/ui`" xmlns:web=`"http://v8.1c.ru/8.1/data/ui/colors/web`" xmlns:win=`"http://v8.1c.ru/8.1/data/ui/colors/windows`" xmlns:xr=`"http://v8.1c.ru/8.3/xcf/readable`" xmlns:xs=`"http://www.w3.org/2001/XMLSchema`" xmlns:xsi=`"http://www.w3.org/2001/XMLSchema-instance`" version=`"$($script:formatVersion)`">"
 
 # 12a. Title (from def.title or properties.title — must be multilingual XML)
 $formTitle = $def.title