fix(portability): aipass init UTF-8 stdout on Windows + CI e2e lane (DPLAN-0194)

The real T1 Windows bug (diagnosed via the now-reverted error-surfacing
probe): aipass init scaffolds fine, then crashes printing its success
banner — Rich writes the success glyphs through a cp1252 stdout
(UnicodeEncodeError 'charmap'). Same class as the drone fix. The aipass
entry point now reconfigure()s stdout/stderr to UTF-8 in place on Windows.

Also: ci.yml's broad 'pytest --rootdir=.' swept in tests/e2e (which build
a wheel via the dedicated e2e-wheel.yml), failing the unit lane since the
harness landed; now --ignore=tests/e2e in both pytest jobs.

route_command error-surfacing probe reverted to honor 'no function change'
(the masked-error mislabel is noted as a separate @aipass recommendation).

Local: e2e 14/14 green, aipass units 24/24, ruff clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -38,7 +38,9 @@ jobs:
       - run: |
           python -m pip install --upgrade pip
           pip install -e ".[dev]"
-      - run: coverage run -m pytest -v --tb=short --rootdir=.
+      # tests/e2e build a wheel + clean venv per the dedicated e2e-wheel.yml
+      # workflow — they are not part of the fast unit lane.
+      - run: coverage run -m pytest -v --tb=short --rootdir=. --ignore=tests/e2e
 
   standards:
     name: seedgo-audit
@@ -66,7 +68,7 @@ jobs:
       - run: |
           python -m pip install --upgrade pip
           pip install -e ".[dev]"
-      - run: coverage run -m pytest --rootdir=.
+      - run: coverage run -m pytest --rootdir=. --ignore=tests/e2e
       - run: coverage xml
       - uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6.0.1
         with: