[BUG] filesystem: skip symbolic links instead of aborting

`FlySystemAdapter::createForPath()` instantiates the Local/Flysystem
adapter with the default link-handling mode, which is
`DISALLOW_LINKS` in both `league/flysystem` v1 (`Adapter\Local`) and
v3 (`Local\LocalFilesystemAdapter`). When the adapter's
`listContents()` encounters any symbolic link during directory
traversal it throws — v1: `League\Flysystem\NotSupportedException`,
v3: `League\Flysystem\SymbolicLinkEncountered` — aborting the whole
render.

Concrete consumer impact
------------------------
`phpDocumentor\Guides\Handlers\ParseDirectoryHandler` calls
`FlySystemAdapter::listContents()` to find the entrypoint of an
input directory. A single symlink anywhere in the input tree kills
the run, even for symlinks that point to files the parser would
ignore anyway (e.g. `CLAUDE.md -> AGENTS.md` for AI tooling, vendored
references, build artefacts).

Downstream report in the TYPO3 render-guides wrapper:
TYPO3-Documentation/render-guides#1234

Fix
---
Pass `SKIP_LINKS` as the link-handling constructor argument to both
the v1 and v3 Local adapters. This preserves the current "do not
follow links" posture but turns an abort into a silent skip — aligning
with how most documentation builders treat filesystem entries they
can't or shouldn't parse.

- v1: `new Local($path, LOCK_EX, Local::SKIP_LINKS)` (positional, since
  v1's constructor predates named args; `LOCK_EX` is the library's own
  default for `$writeFlags`).
- v3: `new LocalFilesystemAdapter($path, linkHandling: SKIP_LINKS)`
  (named arg, skipping the unchanged `$visibility` and `$writeFlags`).

Verification
------------
The project has `FlySystemAdapter::createForPath` as its one code
path for building filesystem instances from a local path, so this
covers every entry point. Downstream reproducer (now green once
shipped):

    ln -s AGENTS.md Documentation/CLAUDE.md
    docker run --rm -v "$PWD:/project" -w /project \
      ghcr.io/typo3-documentation/render-guides:latest \
      render --config=Documentation --output=out Documentation

Signed-off-by: Sebastian Mendel <github@sebastianmendel.de>

Author: CybotTM

packages/filesystem/src/FlySystemAdapter.php

@@ -34,11 +34,11 @@ public static function createForPath(string $path): self
     {
         if (class_exists(Local::class)) {
             /** @phpstan-ignore-next-line */
-            $filesystem = new FlysystemV1(new LeagueFilesystem(new Local($path)));
+            $filesystem = new FlysystemV1(new LeagueFilesystem(new Local($path, LOCK_EX, Local::SKIP_LINKS)));
         } else {
             $filesystem = new FlysystemV3(
                 new LeagueFilesystem(
-                    new LocalFilesystemAdapter($path),
+                    new LocalFilesystemAdapter($path, linkHandling: LocalFilesystemAdapter::SKIP_LINKS),
                 ),
             );
         }