ci(forensic): use bash on Windows runner (chickensoft sets up Git Bash)

PowerShell *> redirect against the godot wrapper script swallowed
output, leaving the Windows job INDETERMINATE on the previous run.
The existing godot-tests-windows job in ci.yml already uses
shell: bash on windows-latest with the same chickensoft setup, so
unifying the synthetic to a single bash step works on all three OSes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: dsarno

.github/workflows/forensic-issue-245.yml

@@ -1,8 +1,9 @@
 name: Forensic / issue-245 dictionary hot-reload
 
-# Manual one-shot to verify the macOS-only "newly-injected typed Dictionary
-# field stays NIL after hot-reload" bug across Linux, macOS, and Windows
-# Godot 4.6.2-stable runners. Triggered via workflow_dispatch only.
+# Manual one-shot to verify the "newly-introduced typed Dictionary field
+# stays NIL after hot-reload" bug across Linux, macOS, and Windows Godot
+# 4.6.2-stable runners. Initial macOS run from a Mac confirmed the crash;
+# this workflow checks Linux + Windows + a second macOS for completeness.
 
 on:
   workflow_dispatch:
@@ -30,62 +31,30 @@ jobs:
           version: 4.6.2
           use-dotnet: false
 
-      - name: Run synthetic dictionary-injection test (Linux/macOS)
-        if: matrix.os != 'windows-latest'
+      - name: Run synthetic dictionary-injection test
         shell: bash
         run: |
           set +e
           godot --headless --editor \
             --path docs/forensic/issue-245/repro-dictinject \
-            --quit-after 1500 > /tmp/synthetic.log 2>&1
+            --quit-after 1500 > synthetic.log 2>&1
           rc=$?
           echo "::group::Full Godot output"
-          cat /tmp/synthetic.log
+          cat synthetic.log
           echo "::endgroup::"
           echo "exit code: $rc"
           echo
           echo "===== Verdict ====="
-          if grep -q "post-reload property names" /tmp/synthetic.log; then
-            grep "post-reload property names" /tmp/synthetic.log
+          if grep -q "post-reload property names" synthetic.log; then
+            grep "post-reload property names" synthetic.log
           fi
-          if grep -q "inst.get('injected_dict')" /tmp/synthetic.log; then
-            grep "inst.get('injected_dict')" /tmp/synthetic.log
+          if grep -q "inst.get('injected_dict')" synthetic.log; then
+            grep "inst.get('injected_dict')" synthetic.log
           fi
-          if grep -q "Program crashed with signal" /tmp/synthetic.log; then
+          if grep -q "Program crashed with signal" synthetic.log; then
             echo "RESULT: CRASH (Dictionary::keys on null _p)"
-          elif grep -q "DONE — no SIGABRT" /tmp/synthetic.log; then
+          elif grep -q "DONE — no SIGABRT" synthetic.log; then
             echo "RESULT: OK (no crash, hot-reload initialized field correctly)"
           else
             echo "RESULT: INDETERMINATE (test did not complete normally; rc=$rc)"
           fi
-
-      - name: Run synthetic dictionary-injection test (Windows)
-        if: matrix.os == 'windows-latest'
-        shell: pwsh
-        run: |
-          $log = "$env:TEMP\synthetic.log"
-          # `godot.exe` is on PATH after setup-godot
-          & godot --headless --editor `
-            --path docs/forensic/issue-245/repro-dictinject `
-            --quit-after 1500 *> $log
-          $rc = $LASTEXITCODE
-          Write-Host "::group::Full Godot output"
-          Get-Content $log
-          Write-Host "::endgroup::"
-          Write-Host "exit code: $rc"
-          Write-Host ""
-          Write-Host "===== Verdict ====="
-          $content = Get-Content $log -Raw
-          if ($content -match "post-reload property names: .*") {
-            Write-Host $matches[0]
-          }
-          if ($content -match "inst\.get\('injected_dict'\): .*") {
-            Write-Host $matches[0]
-          }
-          if ($content -match "Program crashed with signal") {
-            Write-Host "RESULT: CRASH (Dictionary::keys on null _p)"
-          } elseif ($content -match "DONE — no SIGABRT") {
-            Write-Host "RESULT: OK (no crash, hot-reload initialized field correctly)"
-          } else {
-            Write-Host "RESULT: INDETERMINATE (test did not complete normally; rc=$rc)"
-          }