Upgrade to libakstdlib 0.1.0

Bump deps/libakstdlib five commits to 95e5002, which versions the library
at 0.1.0 with an soname and a ConfigVersion file, upgrades its own
libakerror to 1.0.0, namespaces its coverage target when embedded, and
raises its libc-wrapper coverage. The public header diff is purely
additive -- nothing removed, no signature changed -- so libakgl's nine
aksl_* call sites needed no edits. What broke was the build.

A default `cmake -S . -B build` stopped configuring:

    add_executable cannot create target "test_version" because another
    target with the same name already exists. The existing target is an
    executable created in source directory ".../deps/libakstdlib"

The versioning commit added tests/test_version.c to libakstdlib.
EXCLUDE_FROM_ALL keeps that target from being built, but
add_subdirectory still creates it, so it collided with the version suite
added in the preceding commit. Build libakgl's test programs as
akgl_test_<name> instead. The CTest names are unchanged -- ctest -R
version still selects it -- and a dependency is now free to ship a test
of any name.

Ask find_package for libakstdlib 0.1 rather than any version. 0.1.0
ships akstdlibConfigVersion.cmake with SameMinorVersion compatibility,
mirroring its libakstdlib.so.0.1 soname, so this accepts any 0.1.x and
refuses 0.2 and 1.0. Unversioned, the non-embedded path would have taken
an ABI-incompatible libakstdlib without complaint.

libakerror is deliberately left unversioned in find_package. It installs
akerrorConfig.cmake and akerrorTargets.cmake but no
akerrorConfigVersion.cmake, so find_package(akerror 1.0) fails against a
correct install rather than a stale one. Its floor stays with the #error
in include/akgl/error.h. Worth fixing upstream.

Verified: clean configure, build and 16/16 ctest; a -DAKGL_COVERAGE=ON
tree configures, builds and passes 18/18, so libakstdlib's embedded
coverage-target rename does not collide here. Against a temp-prefix
install of 95e5002, find_package(akstdlib) accepts 0.1 and 0.1.0 and
refuses 0.2 and 1.0, and find_package(akerror 1.0) fails for the missing
version file as described.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

CMakeLists.txt

@@ -63,11 +63,19 @@ else()
   if(NOT TARGET SDL3_ttf::SDL3_ttf)
     find_package(SDL3_ttf REQUIRED)
   endif()
+  # No version here: libakerror ships no akerrorConfigVersion.cmake, so asking
+  # for one makes find_package reject every install. The floor is enforced by
+  # the #error in include/akgl/error.h instead, which feature-tests
+  # AKERR_FIRST_CONSUMER_STATUS.
   if(NOT TARGET akerror::akerror)
     find_package(akerror REQUIRED)
   endif()
+  # 0.1 rather than bare: libakstdlib 0.1.0 ships an akstdlibConfigVersion.cmake
+  # with SameMinorVersion compatibility, mirroring its soname, so this accepts
+  # any 0.1.x and refuses 0.2 and 1.0. Unversioned, this path would silently
+  # accept an ABI-incompatible libakstdlib.
   if(NOT TARGET akstdlib::akstdlib)
-    find_package(akstdlib REQUIRED)
+    find_package(akstdlib 0.1 REQUIRED)
   endif()
   if(NOT TARGET jansson::jansson)
     find_package(jansson)
@@ -140,10 +148,10 @@ set_target_properties(akgl PROPERTIES
 add_library(akgl::akgl ALIAS akgl)
 
 add_executable(charviewer util/charviewer.c)
-add_executable(test_semver_unit deps/semver/semver_unit.c)
+add_executable(akgl_test_semver_unit deps/semver/semver_unit.c)
 
 # Every suite here is a standalone C program named tests/<name>.c, built as
-# test_<name> and registered with CTest under <name>.
+# akgl_test_<name> and registered with CTest under <name>.
 set(AKGL_TEST_SUITES
   actor
   bitmasks
@@ -162,12 +170,16 @@ set(AKGL_TEST_SUITES
   version
 )
 
+# The executables carry an akgl_ prefix but the CTest names do not: a vendored
+# dependency is free to ship its own tests/version.c, and libakstdlib now does.
+# Its target is created by add_subdirectory even though EXCLUDE_FROM_ALL keeps
+# it from being built, so an unprefixed test_version here is a configure error.
 foreach(suite IN LISTS AKGL_TEST_SUITES)
-  add_executable(test_${suite} tests/${suite}.c)
-  add_test(NAME ${suite} COMMAND test_${suite})
+  add_executable(akgl_test_${suite} tests/${suite}.c)
+  add_test(NAME ${suite} COMMAND akgl_test_${suite})
 endforeach()
 
-add_test(NAME semver_unit COMMAND test_semver_unit)
+add_test(NAME semver_unit COMMAND akgl_test_semver_unit)
 
 set_tests_properties(
   ${AKGL_TEST_SUITES} semver_unit
@@ -235,8 +247,8 @@ target_link_libraries(akgl
 )
   
 foreach(suite IN LISTS AKGL_TEST_SUITES)
-  target_link_libraries(test_${suite} PRIVATE akstdlib::akstdlib akerror::akerror akgl SDL3::SDL3 SDL3_ttf::SDL3_ttf SDL3_image::SDL3_image SDL3_mixer::SDL3_mixer  jansson::jansson -lm)
-  target_include_directories(test_${suite} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/tests")
+  target_link_libraries(akgl_test_${suite} PRIVATE akstdlib::akstdlib akerror::akerror akgl SDL3::SDL3 SDL3_ttf::SDL3_ttf SDL3_image::SDL3_image SDL3_mixer::SDL3_mixer  jansson::jansson -lm)
+  target_include_directories(akgl_test_${suite} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/tests")
 endforeach()
 
 target_link_libraries(charviewer PRIVATE akstdlib::akstdlib akerror::akerror akgl SDL3::SDL3 SDL3_ttf::SDL3_ttf SDL3_image::SDL3_image SDL3_mixer::SDL3_mixer  jansson::jansson -lm)
@@ -256,7 +268,7 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
     "$<TARGET_FILE_DIR:akstdlib::akstdlib>"
   )
   foreach(suite IN LISTS AKGL_TEST_SUITES)
-    set_target_properties(test_${suite} PROPERTIES BUILD_RPATH "${AKGL_VENDORED_RPATH}")
+    set_target_properties(akgl_test_${suite} PROPERTIES BUILD_RPATH "${AKGL_VENDORED_RPATH}")
   endforeach()
   set_target_properties(charviewer akgl PROPERTIES BUILD_RPATH "${AKGL_VENDORED_RPATH}")