VFS perf fixes, icon/stylesheet compat, download filename fix

VFS:
- Open backing fd at mo2_open time for read-only handles so mo2_read can
  splice without re-opening the file on every read call.
- Bump RLIMIT_NOFILE at mount time to fit the resulting fd pressure when
  the game keeps hundreds of BSAs open.
- Dedicated node_cache_mutex so resolveByInode / mo2_lookup stop racing
  unordered_map writes while multiple tree_mutex readers are active.
- max_read=1MB + matching conn->max_read and raised max_readahead/max_write
  so the kernel merges Wine's small sequential reads into bigger FUSE
  requests.
- Per-op wall-clock counters in mo2_init() logs so we can distinguish VFS
  latency from game-side work.

Proton launch:
- Write dxvk.conf to the prefix and set DXVK_CONFIG_FILE to force
  dxvk.enableGraphicsPipelineLibrary=False, avoiding long GPL compile
  stalls on first run.

UI / plugin compat:
- Clamp IconDelegate's per-icon width to [8, 16] so narrow content
  columns don't trigger QIcon::pixmap(0,0) returning null and logging
  "failed to load icon" every repaint.
- Pre-create lowercase symlinks in the stylesheet directory so QSS files
  authored on Windows resolve url(foo.svg) when on-disk files are Foo.svg.
- Flip content icons empty-chessboard.png and facegen.png to 8-bit RGBA
  so Qt's built-in PNG reader loads them uniformly.
- Add mobase.Version.canonicalString shim for legacy Python plugins that
  still call the old VersionInfo method on appVersion()'s return.
- BSPluginList: compare normalized plugin name lists instead of byte
  hashes so the post-run case-fix refresh stops spuriously firing the
  "load order changed" dialog.
- BSPluginList disabled by default.

Download manager:
- Parse CDN URL with QUrl + QUrlQuery and read the filename from the
  response-content-disposition query param (RFC 6266 quoted / unquoted /
  ext-value forms), not QFileInfo on the raw URL.
- When the API or URL gives us a CDN object key (no archive extension),
  prefer the actual Content-Disposition header from the live response in
  metaDataChanged and downloadFinished.

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

1 files changed, 27 insertions, 0 deletions

diff --git a/libs/installer_bsplugins/plugindefinition.json b/libs/installer_bsplugins/plugindefinition.json
new file mode 100644
index 0000000..f055e23
--- /dev/null
+++ b/libs/installer_bsplugins/plugindefinition.json
@@ -0,0 +1,27 @@
+{
+    "Name": "Bethesda Plugin Manager",
+    "Author": "Parapets",
+    "Description": "Manages plugin load order for Bethesda Game Studios game engines",
+    "DocsUrl": "",
+    "GithubUrl": "https://github.com/Exit-9B/modorganizer-bsplugins",
+    "NexusUrl": "https://www.nexusmods.com/skyrimspecialedition/mods/111236",
+    "Versions": [
+        {
+            "Version": "0.1.5.0b",
+            "Released": "2024-02-15",
+            "MinSupport": "2.5.0",
+            "MaxSupport": "",
+            "MinWorking": "2.5.0",
+            "MaxWorking": "",
+            "DownloadUrl": "https://github.com/Exit-9B/modorganizer-bsplugins/releases/download/v0.1.5/bsplugins-v0.1.5.7z",
+            "PluginPath": [
+                "plugins/bsplugins.dll"
+            ],
+            "LocalePath": [
+                "translations/bsplugins_en.qm"
+            ],
+            "DataPath": [],
+            "ReleaseNotes": []
+        }
+    ]
+}
\ No newline at end of file