refactor(quartz): move GrapeRank web-of-trust algorithm into quartz

The GrapeRank engine, TrustGraph (compact int-CSR) and TrustGraphBuilder
are pure Nostr-social-graph computation over HexKeys — no UI, no Compose,
and no commons-only dependency. They're a utility for implementing the
NIP-85 rank assertions quartz already models, so they belong in quartz
rather than commons. Move commons/wot -> quartz experimental/graperank
(package com.vitorpamplona.quartz.experimental.graperank), including both
commonTest suites, and repoint the CLI import. TrustGraphBuilder was already
protocol-agnostic (takes HexKey lists; the caller does the event->edge
extraction), so nothing had to change but the package. Makes the algorithm
reusable by the Android app for spam/trust filtering without pulling in
commons.

cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/GrapeRankCommand.kt

@@ -26,9 +26,9 @@ import com.vitorpamplona.amethyst.cli.DataDir
 import com.vitorpamplona.amethyst.cli.Output
 import com.vitorpamplona.amethyst.commons.defaults.Constants
 import com.vitorpamplona.amethyst.commons.defaults.DefaultIndexerRelayList
-import com.vitorpamplona.amethyst.commons.wot.GrapeRank
-import com.vitorpamplona.amethyst.commons.wot.GrapeRankParams
-import com.vitorpamplona.amethyst.commons.wot.TrustGraphBuilder
+import com.vitorpamplona.quartz.experimental.graperank.GrapeRank
+import com.vitorpamplona.quartz.experimental.graperank.GrapeRankParams
+import com.vitorpamplona.quartz.experimental.graperank.TrustGraphBuilder
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.crypto.KeyPair

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/graperank/GrapeRank.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.commons.wot
+package com.vitorpamplona.quartz.experimental.graperank
 
 import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.core.HexKey

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/graperank/TrustGraph.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.commons.wot
+package com.vitorpamplona.quartz.experimental.graperank
 
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/graperank/TrustGraphBuilder.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.commons.wot
+package com.vitorpamplona.quartz.experimental.graperank
 
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/experimental/graperank/GrapeRankTest.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.commons.wot
+package com.vitorpamplona.quartz.experimental.graperank
 
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import kotlin.math.abs

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/experimental/graperank/TrustGraphBuilderTest.kt

@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.commons.wot
+package com.vitorpamplona.quartz.experimental.graperank
 
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import kotlin.test.Test