feat: add hashcat/princeprocessor submodules, fix fresh-install setup

- Add hashcat as git submodule; compile with make, skip if already in PATH
- Convert princeprocessor from tracked files to git submodule
- Change .DEFAULT_GOAL to install so plain `make` does a full install
- Install uv, Xcode CLT (macOS), build-essential (Debian) if missing
- vendor-assets falls back to system hashcat if submodule not compiled
- Remove hcatOptimizedWordlists; all attacks now use hcatWordlists
- Default hcatWordlists to ./wordlists, rules_directory to ./hashcat/rules
- Default hcatTuning to empty string (no --force --remove)
- Backfill missing config.json keys from config.json.example at startup
- Wrap hcatBin/hcatTuning/hcatWordlists loading in try/except with defaults
- Fall back to vendored hashcat binary at hate_path/hashcat/hashcat

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitmodules

@@ -10,3 +10,11 @@
 	path = omen
 	url = https://github.com/RUB-SysSec/OMEN.git
 	ignore = dirty
+[submodule "hashcat"]
+	path = hashcat
+	url = https://github.com/hashcat/hashcat.git
+	ignore = dirty
+[submodule "princeprocessor"]
+	path = princeprocessor
+	url = https://github.com/hashcat/princeprocessor.git
+	ignore = dirty