refactor: rename Java packages com.cameleer.{server,license} → io.cameleer

Brand-aligned reverse-DNS: io.cameleer matches the owned cameleer.io
domain. Part of institutionalization prep — clean break, no compat shims.

Scope:
- 613 .java files: package + import declarations and directory layout
- 5 POMs: groupId for cameleer-server-parent and 4 modules; mainClass FQN
  in cameleer-license-minter; internal inter-module dep coordinates
- .claude/rules/{core,app}-classes.md + CLAUDE.md: keep class/API maps in
  sync per the maintenance rule in CLAUDE.md

Out of scope (intentionally preserved on com.cameleer):
- com.cameleer:cameleer-common — external dep from the agent repo
- Spring config namespaces (cameleer.server.*) — they're property keys,
  not Java packages

Consumer heads-up:
- cameleer-saas pulls io.cameleer:cameleer-license-{api,minter} on next
  sync; their POMs need the matching groupId bump.

Verification: mvn install -DskipITs (273 server-app unit tests pass under
io.cameleer.* package names; license-api / server-core / license-minter
modules all green). The repackage step's JAR-rename failure during the run
was a file lock from a co-running dev server, unrelated to the rename.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cameleer-license-minter/pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>com.cameleer</groupId>
+        <groupId>io.cameleer</groupId>
         <artifactId>cameleer-server-parent</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
@@ -16,7 +16,7 @@
 
     <dependencies>
         <dependency>
-            <groupId>com.cameleer</groupId>
+            <groupId>io.cameleer</groupId>
             <artifactId>cameleer-license-api</artifactId>
         </dependency>
         <dependency>
@@ -59,7 +59,7 @@
                         </goals>
                         <configuration>
                             <classifier>cli</classifier>
-                            <mainClass>com.cameleer.license.minter.cli.LicenseMinterCli</mainClass>
+                            <mainClass>io.cameleer.license.minter.cli.LicenseMinterCli</mainClass>
                         </configuration>
                     </execution>
                 </executions>

cameleer-license-minter/src/main/java/io/cameleer/license/minter/LicenseMinter.java

@@ -1,6 +1,6 @@
-package com.cameleer.license.minter;
+package io.cameleer.license.minter;
 
-import com.cameleer.license.LicenseInfo;
+import io.cameleer.license.LicenseInfo;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.node.ObjectNode;

cameleer-license-minter/src/main/java/io/cameleer/license/minter/cli/LicenseMinterCli.java

@@ -1,7 +1,7 @@
-package com.cameleer.license.minter.cli;
+package io.cameleer.license.minter.cli;
 
-import com.cameleer.license.minter.LicenseMinter;
-import com.cameleer.license.LicenseInfo;
+import io.cameleer.license.minter.LicenseMinter;
+import io.cameleer.license.LicenseInfo;
 
 import java.io.PrintStream;
 import java.nio.file.Files;
@@ -107,7 +107,7 @@ public final class LicenseMinterCli {
                 }
                 try {
                     String pubB64 = Files.readString(Path.of(pubPath)).trim();
-                    new com.cameleer.license.LicenseValidator(pubB64, tenant).validate(token);
+                    new io.cameleer.license.LicenseValidator(pubB64, tenant).validate(token);
                     out.println("verified ok");
                 } catch (Exception ve) {
                     err.println("VERIFY FAILED: " + ve.getMessage());

cameleer-license-minter/src/test/java/io/cameleer/license/minter/LicenseMinterTest.java

@@ -1,7 +1,7 @@
-package com.cameleer.license.minter;
+package io.cameleer.license.minter;
 
-import com.cameleer.license.LicenseInfo;
-import com.cameleer.license.LicenseValidator;
+import io.cameleer.license.LicenseInfo;
+import io.cameleer.license.LicenseValidator;
 import org.junit.jupiter.api.Test;
 
 import java.security.KeyPair;

cameleer-license-minter/src/test/java/io/cameleer/license/minter/cli/LicenseMinterCliTest.java

@@ -1,6 +1,6 @@
-package com.cameleer.license.minter.cli;
+package io.cameleer.license.minter.cli;
 
-import com.cameleer.license.LicenseValidator;
+import io.cameleer.license.LicenseValidator;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;