M3 namespace migration: complete Phase B, partial Phase D, docs and tests

- Native runtime under bearhub/ (api, commons, gems, view/util, view/core, view/qt)
- bauh/ compatibility re-export shims for legacy imports
- Phase D: canonical __version__/__app_name__ in bearhub/__init__.py; pyproject.toml
  and setup.py point at bearhub package
- Native gem loader at bearhub/view/core/gems.py
- Namespace compatibility tests (159 tests passing)
- Documentation: CHANGELOG [Unreleased], NAMESPACE_MIGRATION, ROADMAP, README,
  CONTRIBUTING, docs/qt6-migration.md, packaging/aur/README.md

setup.py

@@ -10,7 +10,7 @@ DESCRIPTION = (
 AUTHOR = "Vinicius Moreira"
 AUTHOR_EMAIL = "vinicius_fmoreira@hotmail.com"
 DIST_NAME = 'bearhub'
-APP_PACKAGE = 'bauh'
+APP_PACKAGE = 'bearhub'
 URL = "https://github.com/spalencsar/" + DIST_NAME
 
 file_dir = os.path.dirname(os.path.abspath(__file__))
@@ -23,7 +23,10 @@ else:
 
 
 with open(file_dir + '/{}/__init__.py'.format(APP_PACKAGE), 'r') as f:
-    exec(f.readlines()[0])
+    for line in f:
+        if line.startswith('__version__'):
+            exec(line)
+            break
 
 
 setup(
@@ -38,6 +41,7 @@ setup(
     packages=find_packages(exclude=["tests.*", "tests"]),
     package_data={
         APP_PACKAGE: [
+            "desktop/*",
             "view/resources/locale/*",
             "view/resources/img/*",
             "view/resources/style/*",
@@ -45,7 +49,6 @@ setup(
             "gems/*/resources/img/*",
             "gems/*/resources/locale/*",
         ],
-        "bearhub": ["desktop/*"],
     },
     install_requires=requirements,
     test_suite="tests",
@@ -66,4 +69,4 @@ setup(
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8'
     ]
-)
+)