Copier Template: Proper fix for breakage introduced by Hatch 1.16.0.

Need 'builder = True' for development/QA environment configurations.
Otherwise `hatch --env <env> build` and `hatch --env <env> version`
break.

Replaces 'env -u HATCH_ENV_ACTIVE' hack suggested by an LLM.

* Project: Also fix in current project so that tests will pass again.

* Reference: pypa/hatch#2113

Author: emcd

pyproject.toml

@@ -106,6 +106,7 @@ strict-naming = false
 python = '3.10'
 [tool.hatch.envs.develop]
 description = ''' Development environment. '''
+builder = true
 dependencies = [
   'Jinja2',
   'coverage[toml]',
@@ -149,7 +150,7 @@ linters = [
   """pyright sources""",
 ]
 packagers = [
-  """env -u HATCH_ENV_ACTIVE hatch build""",
+  """hatch build""",
   # --- BEGIN: Injected by Copier ---
   # --- END: Injected by Copier ---
 ]

template/pyproject.toml.jinja

@@ -127,6 +127,7 @@ strict-naming = false
 python = '{{ python_version_min }}'
 [tool.hatch.envs.develop]
 description = ''' Development environment. '''
+builder = true
 dependencies = [
   'Jinja2',
   'coverage[toml]',
@@ -191,7 +192,7 @@ linters = [
   """pyright sources""",
 ]
 packagers = [
-  """env -u HATCH_ENV_ACTIVE hatch build""",
+  """hatch build""",
   # --- BEGIN: Injected by Copier ---
   {%- if enable_executables %}
   """pyinstaller \