Restructure into freemkv-unlock workspace (ld member + room for more)

libfreemkv owns the Unlocker trait + registry; this repo holds the concrete
unlocker plugins. LibreDrive moves to the ld/ member (package freemkv-unlock-ld
unchanged). Workspace root + repo README describe the general-unlocker model;
adding an unlocker = a new member + one register_unlocker line in the consumer.
libfreemkv dep is the crates.io version; local dev resolves it via the
gitignored .cargo/config.toml patch.

README.md

@@ -1,50 +1,23 @@
-# freemkv-unlock-ld
+# freemkv-unlock
 
-The **LibreDrive** unlocker plugin for [libfreemkv](https://github.com/freemkv/libfreemkv).
+Unlocker plugins for [libfreemkv](https://github.com/freemkv/libfreemkv).
 
-libfreemkv ships only the `Unlocker` trait + registry and stays firmware-clean.
-This crate owns *how* MediaTek MT1959 drives are firmware-unlocked: the bundled
-drive-profile database (`profiles.json`), the firmware blobs, the
-WRITE_BUFFER / MODE SELECT upload, the unlock CDBs, and the variant-A / variant-B
-handshake logic.
-
-## Usage
-
-Register the unlocker once at process start, before any rip:
+libfreemkv ships only the pluggable `Unlocker` trait + registry and stays
+firmware-clean — it contains no concrete firmware-unlock code. Each crate in
+this workspace implements one unlocker and is registered into libfreemkv by a
+single line in the consuming binary:
 
 ```rust
 libfreemkv::register_unlocker(Box::new(freemkv_unlock_ld::LibreDrive::new()));
 ```
 
-That single line is the whole plug. Any drive whose identity matches a bundled
-profile is firmware-unlocked at drive-prep; everything else falls through to
-libfreemkv's host-certificate AACS handshake.
+Removing an unlocker is deleting that one line and the dependency
+(delete-to-comply).
 
-## The `Unlocker` contract
+## Members
 
-This crate is the LibreDrive unlocker — an implementation of libfreemkv's
-`Unlocker` trait. The trait is a 3-method capability contract:
-
-- `unlock_drive` — put the drive into extended-access mode. The one required
-  capability.
-- `read_volume_id` — read the disc Volume ID directly, bypassing the AACS cert
-  handshake. `None` → libfreemkv falls back to the cert-based read. No-op
-  default.
-- `set_max_read_speed` — raise the drive to its maximum read speed. No-op
-  default.
-
-libfreemkv's AACS layer is the always-present baseline; it uses an unlocker's
-capabilities when one matches, and does the full cert handshake when none do.
-Remove this crate and libfreemkv still compiles and rips — every capability
-falls back to the OEM/baseline path.
-
-## Scope: RAM microcode only (`#2`), never the bootloader flash (`#1`)
-
-freemkv uploads the RAM microcode to an **already-bootloader-flashed** drive.
-The permanent bootloader flash (`#1`) is the drive owner's one-time manual
-step; it is **never** automated by freemkv. This crate only performs the
-non-persistent `#2` step — the microcode lives in RAM and is gone on power
-cycle.
-
-<!-- TODO(owner): MakeMKV attribution + thanks -->
+| Crate | Unlocker |
+|-------|----------|
+| [`ld`](ld/) (`freemkv-unlock-ld`) | LibreDrive — MediaTek MT1959 firmware unlock |
 
+License: AGPL-3.0-only.