Replace patchelf crack with Freeloader LD_PRELOAD approach

- Multi-stage Dockerfile: discover patterns from PMS binary (capstone),
  compile .so with zig (musl), layer onto lscr.io/linuxserver/plex
- Uses LD_PRELOAD instead of patchelf (which corrupts Plex's musl loader)
- Auto-discovery: broad structural patterns with string-anchored fallback
  (//feature) and relationship-based fallback (BITSET_REF within BS_INIT)
- hook.cpp uses __has_include for generated patterns with hardcoded fallbacks
- Custom wrapper.sh (no traffic_logger preload)
- Vendored Freeloader source (github.com/authrequest/Freeloader, AGPL-3.0)
- Removed stale plexmediaserver_crack.so binary
- Supports Plex 1.43.3+ (verified against 1.43.2 and 1.43.3)

Freeloader/docs/WINDOWS.md

@@ -0,0 +1,66 @@
+# Windows patching guide
+
+Top-level index for the Windows x64 Plex Media Server work in this repo.
+
+## What exists
+
+The Windows implementation lives in [`../windows/`](../windows/) and contains:
+
+- `plex_patch.dll` — injected payload that forces the feature bitset on
+- `plex_inject.exe` — injector that attaches to or launches `Plex Media Server.exe`
+- a small engine split into:
+  - `pe_image.h` — PE parsing, section bounds, RVA resolution, version guard
+  - `sig_scan.h` — byte-pattern scanning helpers
+  - `trampoline.h` — Zydis-based x64 inline hook engine
+  - `feature_patch.h` — bitset forcing, populator hook, guard thread
+
+## Current target
+
+Pinned to:
+
+- **Plex Media Server** `1.43.2.10687-563d026ea`
+- **Platform**: Windows x64
+
+The patch uses a **version guard** and **bounds-checked RVA resolution** before
+it touches the target process.
+
+## Build
+
+From `windows/`:
+
+```bat
+build.bat
+```
+
+This produces:
+
+- `build\plex_patch.dll`
+- `build\plex_inject.exe`
+
+The build reuses the repo's vendored Zydis and Zig toolchain conventions.
+
+## Run
+
+Attach to a running PMS:
+
+```bat
+build\plex_inject.exe
+```
+
+Or launch PMS through the injector:
+
+```bat
+build\plex_inject.exe --launch "C:\Program Files\Plex\Plex Media Server\Plex Media Server.exe"
+```
+
+## Where to read next
+
+- Detailed Windows architecture and usage: [`../windows/README.md`](../windows/README.md)
+- Linux build/install flow: [`BUILD.md`](BUILD.md)
+- Repo overview: [`../README.md`](../README.md)
+
+## Notes
+
+- `windows/build/` artifacts are intentionally git-ignored.
+- The original incompatible `.i64` was left untouched; the working Windows IDB
+  was rebuilt in a writable analysis directory during RE.