Ship 0.8 fog/freistellen and fix Windows CI for friends

Publish the portable zip to public Forgejo from the private GitHub
builder, and force Ninja so MSVC 195 deps build without CMake 4.2.

conan/conan-skia/recipes/skia/all/conanfile.py

@@ -509,8 +509,58 @@ class ConanSkia(ConanFile):
         return [fw + ".framework" for fw in frameworks]
 
     def build(self):
+        # Optional: reuse a finished out/conan from a prior local build
+        # (avoids re-hitting googlesource + full ninja). Path = .../out/conan
+        reuse_out = os.environ.get("SKIA_REUSE_OUT")
+        if reuse_out and os.path.isdir(reuse_out):
+            import shutil
+            dst = join(self.source_folder, "out", "conan")
+            os.makedirs(join(self.source_folder, "out"), exist_ok=True)
+            if os.path.isdir(dst):
+                shutil.rmtree(dst)
+            shutil.copytree(reuse_out, dst)
+            return
+
         # activate-emsdk fails on Windows for some reason.
         os.environ["GIT_SYNC_DEPS_SKIP_EMSDK"] = "1"
+        # Default git-sync-deps fans out one thread per dep and hits
+        # googlesource HTTP 429. Serialize + retry before syncing.
+        replace_in_file(
+            self,
+            join(self.source_folder, "tools", "git-sync-deps"),
+            """def multithread(function, list_of_arg_lists):
+  anything_failed = False
+  threads = []
+  def hook(args):
+    nonlocal anything_failed
+    anything_failed = True
+  threading.excepthook = hook
+  for args in list_of_arg_lists:
+    thread = threading.Thread(None, function, None, args)
+    thread.start()
+    threads.append(thread)
+  for thread in threads:
+    thread.join()
+  if anything_failed:
+    raise Exception("Thread failure detected")
+""",
+            """def multithread(function, list_of_arg_lists):
+  import time
+  for args in list_of_arg_lists:
+    last_err = None
+    for attempt in range(6):
+      try:
+        function(*args)
+        last_err = None
+        break
+      except Exception as e:
+        last_err = e
+        time.sleep(min(60, 2 ** attempt))
+    if last_err is not None:
+      raise last_err
+""",
+            strict=True,
+        )
         self.run("python3 tools/git-sync-deps")
         del os.environ["GIT_SYNC_DEPS_SKIP_EMSDK"]
 
@@ -585,9 +635,21 @@ class ConanSkia(ConanFile):
 
         buildenv = VirtualBuildEnv(self).vars()
 
-        if cc := buildenv.get("CC", default=None):
+        cc = buildenv.get("CC", default=None)
+        cxx = buildenv.get("CXX", default=None)
+        # Fall back to tools.build:compiler_executables when VirtualBuildEnv
+        # did not inject CC/CXX (common with only profile [conf]).
+        try:
+            executables = self.conf.get("tools.build:compiler_executables", default={}) or {}
+        except Exception:
+            executables = {}
+        if not cc:
+            cc = executables.get("c")
+        if not cxx:
+            cxx = executables.get("cpp")
+        if cc:
             args += f"cc=\"{cc}\"\n"
-        if cxx := buildenv.get("CXX", default=None):
+        if cxx:
             args += f"cxx=\"{cxx}\"\n"
         if ar := buildenv.get("AR", default=None):
             args += f"ar=\"{ar}\"\n"