fix: Percentiler returns 100 for the max score; build against local-stack SNAPSHOTs

getPercentile used 'value > _max', so the highest score ever seen returned
~99 instead of 100, contradicting the method's javadoc. Use '>=' to match
the documented contract. Also pin sibling deps to local SNAPSHOTs
(ooo-util 1.6, narya 1.20, nenya/nenya-tools 1.7.3, depot 1.9).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/pom.xml

@@ -16,24 +16,24 @@
     <dependency>
       <groupId>com.threerings</groupId>
       <artifactId>ooo-util</artifactId>
-      <version>1.5</version>
+      <version>1.6-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.threerings</groupId>
       <artifactId>narya</artifactId>
-      <version>1.17</version>
+      <version>1.20-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.threerings</groupId>
       <artifactId>nenya</artifactId>
-      <version>1.7</version>
+      <version>1.7.3-SNAPSHOT</version>
     </dependency>
 
     <!-- optional dependencies -->
     <dependency>
       <groupId>com.threerings</groupId>
       <artifactId>nenya-tools</artifactId>
-      <version>1.7</version>
+      <version>1.7.3-SNAPSHOT</version>
       <optional>true</optional>
     </dependency>
     <dependency>
@@ -45,7 +45,7 @@
     <dependency>
       <groupId>com.samskivert</groupId>
       <artifactId>depot</artifactId>
-      <version>1.8</version>
+      <version>1.9-SNAPSHOT</version>
       <optional>true</optional>
     </dependency>
     <dependency>

core/src/main/java/com/threerings/parlor/rating/util/Percentiler.java

@@ -213,7 +213,7 @@ public class Percentiler
     {
         if (value < _min) {
             return 0;
-        } else if (value > _max) {
+        } else if (value >= _max) {
             return 100;
         } else {
             return _percentile[toBucketIndex(value)];