unlock: add Unlocker::name() + report-only applies_to() for the matrix

Each unlocker now carries its own stable name() (the single source; apps
never hardcode it) and a report-only applies_to() — phase-independent
'would this apply to this drive+disc', distinct from the dispatch-gated
matches(). LibreDrive overrides applies_to to report on drive identity
regardless of disc kind (its matches() is gated to the Unknown-kind init
phase). Enables a registry-driven unlocker matrix.

src/aacs/mod.rs

@@ -44,6 +44,10 @@ impl Default for AacsCert {
 }
 
 impl Unlocker for AacsCert {
+    fn name(&self) -> &'static str {
+        "AACS"
+    }
+
     fn matches(&self, ctx: &UnlockCtx) -> bool {
         ctx.kind == DiscKind::Aacs
     }

src/css/mod.rs

@@ -160,6 +160,10 @@ impl Default for CssUnlocker {
 }
 
 impl crate::Unlocker for CssUnlocker {
+    fn name(&self) -> &'static str {
+        "CSS"
+    }
+
     fn matches(&self, ctx: &crate::UnlockCtx) -> bool {
         ctx.kind == crate::DiscKind::Css
     }

src/ld/mod.rs

@@ -121,10 +121,22 @@ impl Unlocker for LibreDrive {
     /// probed (`kind == Unknown`) and keys off the drive identity. It must NOT
     /// fire during the later content-keyed dispatch (Aacs/Css), or a DVD/Blu-ray
     /// in a profiled drive would be re-firmware-unlocked.
+    fn name(&self) -> &'static str {
+        "LibreDrive"
+    }
+
     fn matches(&self, ctx: &UnlockCtx) -> bool {
         ctx.kind == crate::DiscKind::Unknown && profile::find_bundled(ctx.drive_id).is_some()
     }
 
+    /// For the report, the drive unlocker applies whenever it recognises the
+    /// DRIVE — independent of disc kind (its live `matches` is gated to the
+    /// Unknown-kind init phase, which would falsely read "no" once the disc kind
+    /// is known).
+    fn applies_to(&self, ctx: &UnlockCtx) -> bool {
+        profile::find_bundled(ctx.drive_id).is_some()
+    }
+
     /// Firmware-unlock the drive and report its OEM Volume ID. The unlocked drive
     /// serves CLEAR content, so `drive_unlocked: true` and there is no bus key.
     ///

src/ld/profile.rs

@@ -290,10 +290,7 @@ fn load_from_str(data: &str) -> Result<Profiles> {
 /// profile; the looser pass lets a drive whose firmware date we don't have
 /// on file still match a same-model profile. All comparisons are
 /// whitespace-trimmed. Returns the first section that yields a match.
-pub fn find_by_drive_id(
-    profiles: &Profiles,
-    drive_id: &crate::DriveId,
-) -> Option<ProfileMatch> {
+pub fn find_by_drive_id(profiles: &Profiles, drive_id: &crate::DriveId) -> Option<ProfileMatch> {
     let v = drive_id.vendor_id.trim();
     let r = drive_id.product_revision.trim();
     let vs = drive_id.vendor_specific.trim();

src/lib.rs

@@ -110,8 +110,26 @@ pub enum UnlockError {
 /// NOTE: drive tuning (e.g. SET CD SPEED to lift riplock) is deliberately NOT
 /// here — that is the consumer's concern, not bus removal.
 pub trait Unlocker: Send + Sync {
-    /// True if this unlocker applies to the given context (drive id + disc kind).
+    /// Short, stable identifier for this unlocker (e.g. "LibreDrive", "AACS",
+    /// "CSS"). The ONE place a name lives — apps render the unlocker report from
+    /// [`all_unlockers`], never hardcoding names, so adding/removing an unlocker
+    /// updates every report with no app change.
+    fn name(&self) -> &'static str;
+
+    /// True if this unlocker applies to the given context (drive id + disc kind)
+    /// during live dispatch — the gate [`crate::all_unlockers`] uses to decide
+    /// whether to RUN it.
     fn matches(&self, ctx: &UnlockCtx) -> bool;
+
+    /// Report-only: would this unlocker apply to this drive + disc, for a
+    /// user-facing unlocker matrix? Distinct from [`matches`](Unlocker::matches),
+    /// which is phase-gated (e.g. the drive-prep unlocker only `matches` at the
+    /// Unknown-kind init phase). Default: same as `matches`; the drive-keyed
+    /// unlocker overrides it to report on drive identity regardless of disc kind.
+    fn applies_to(&self, ctx: &UnlockCtx) -> bool {
+        self.matches(ctx)
+    }
+
     /// Remove the bus-encryption barrier, returning what was learned.
     fn unlock(
         &self,