feat: add 6 more built-in patterns (Beacon, Boat, Tub, Beehive, R-pentomino, Acorn)

Extend pattern module to 10 patterns and map them to digit keys 5-0.
Update config defaults and tests.

tests/test_pattern.c

@@ -4,7 +4,7 @@
 #include "pattern.h"
 
 int main(void) {
-    assert(pattern_count() == 4);
+    assert(pattern_count() == 10);
     const void *p = pattern_get(0);
     (void)p;
     int dx[16], dy[16];