darkdump: broken venv missing deps, darkscrape: face_recognition fails on Python 3.14 #5024

darkdump (2:Darkdump.4.r5.g59912f6-1)

The venv at `/usr/share/darkdump/venv/` is empty — only pip is installed. Running `darkdump` fails with missing modules:

```
ModuleNotFoundError: No module named 'nltk'
ModuleNotFoundError: No module named 'requests'
ModuleNotFoundError: No module named 'textblob'
ModuleNotFoundError: No module named 'termcolor'
```

Fix: The PKGBUILD needs to install the deps from `requirements.txt` into the venv during packaging:
```bash
/usr/share/darkdump/venv/bin/pip install -r /usr/share/darkdump/requirements.txt
```

darkscrape (68.2ca0e37-8)

`import face_recognition` at module level fails on Python 3.14 because `face_recognition_models` uses `pkg_resources`, which was removed in setuptools 84+:

```
ModuleNotFoundError: No module named 'pkg_resources'
```

`face_recognition` is only used for the optional face-matching feature, not the core scraping functionality. The import should be lazy/optional.

Suggested fix: Either:

1. Pin `setuptools<70` in the darkscrape venv, or
2. Make the `face_recognition` import conditional (try/except with a warning)