Fix JaCoCo coverage exclusions after package rename

Updated JaCoCo exclusions from old package name (org/flossware/jcurses)
to new package name (org/flossware/curses).

This fixes the coverage reporting which was incorrectly including
demo and FFI classes that should be excluded.

Coverage Results:
- Instruction Coverage: 99% ✅ (target: 99%)
- Branch Coverage: 90% ✅ (target: 90%)
- Line Coverage: 100% ✅ (target: 100%)

Excluded classes (pragmatic coverage):
- Main.class - demo application
- InteractiveDemo.class - interactive demo
- ffi/** - native FFI layer (requires ncurses runtime)
- render/** - rendering engine (requires ncurses runtime)

Closes #51

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Flossy

pom.xml

@@ -159,12 +159,12 @@
           <!-- Pragmatic Coverage: Exclude demos and native layers (require ncurses runtime) -->
           <excludes>
             <!-- Demo applications - example code for library usage -->
-            <exclude>org/flossware/jcurses/Main.class</exclude>
-            <exclude>org/flossware/jcurses/InteractiveDemo.class</exclude>
+            <exclude>org/flossware/curses/Main.class</exclude>
+            <exclude>org/flossware/curses/InteractiveDemo.class</exclude>
             <!-- FFI/native layer - requires ncurses runtime for testing -->
-            <exclude>org/flossware/jcurses/ffi/**</exclude>
+            <exclude>org/flossware/curses/ffi/**</exclude>
             <!-- Render layer - requires ncurses runtime for testing -->
-            <exclude>org/flossware/jcurses/render/**</exclude>
+            <exclude>org/flossware/curses/render/**</exclude>
           </excludes>
         </configuration>
         <executions>