ci: enable Windows integration and tools-smoke CI

Remove the Windows exclude blocks from integration-tests and
tools-smoke matrix jobs. Add a conditional pre-install step for
machine68k-amifuse on Windows runners, working around upstream
machine68k issues #8 and #9.

Author: tbdye

.github/workflows/ci.yml

@@ -44,11 +44,6 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          # Windows excluded: machine68k segfaults due to opcode table
-          # over-read (cnvogelg/machine68k#8) and JMP/CAS collision (#9).
-          # Remove this exclude block once upstream fixes land.
-          - os: windows-latest
     steps:
       - uses: actions/checkout@v4
         with:
@@ -67,6 +62,14 @@ jobs:
           git clone --depth 1 https://github.com/reinauer/AmiFUSE-testing.git ../AmiFUSE-testing
         continue-on-error: true
 
+      - name: Install machine68k-amifuse (Windows)
+        # Upstream machine68k lacks Windows fixes (cnvogelg/machine68k#8,
+        # #9). The machine68k-amifuse fork includes all fixes with
+        # pre-built Windows wheels.
+        # Remove this step once upstream machine68k merges the fixes.
+        if: runner.os == 'Windows'
+        run: pip install "machine68k-amifuse>=0.4.1.post1"
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
@@ -93,11 +96,6 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          # Windows excluded: machine68k segfaults due to opcode table
-          # over-read (cnvogelg/machine68k#8) and JMP/CAS collision (#9).
-          # Remove this exclude block once upstream fixes land.
-          - os: windows-latest
     steps:
       - uses: actions/checkout@v4
         with:
@@ -116,6 +114,14 @@ jobs:
           git clone --depth 1 https://github.com/reinauer/AmiFUSE-testing.git ../AmiFUSE-testing
         continue-on-error: true
 
+      - name: Install machine68k-amifuse (Windows)
+        # Upstream machine68k lacks Windows fixes (cnvogelg/machine68k#8,
+        # #9). The machine68k-amifuse fork includes all fixes with
+        # pre-built Windows wheels.
+        # Remove this step once upstream machine68k merges the fixes.
+        if: runner.os == 'Windows'
+        run: pip install "machine68k-amifuse>=0.4.1.post1"
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip