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>

config.json.example

@@ -1,12 +1,11 @@
 {
   "hcatPath": "/path/to/hashcat",
   "hcatBin": "hashcat",
-  "hcatTuning": "--force --remove",
+  "hcatTuning": "",
   "hcatPotfilePath": "~/.hashcat/hashcat.potfile",
   "hcatDebugLogPath": "./hashcat_debug",
-  "hcatWordlists": "/Passwords/wordlists",
-  "hcatOptimizedWordlists": "/Passwords/optimized_wordlists",
-  "rules_directory": "/path/to/hashcat/rules",
+  "hcatWordlists": "./wordlists",
+  "rules_directory": "./hashcat/rules",
   "hcatDictionaryWordlist": ["rockyou.txt"],
   "hcatCombinationWordlist": ["rockyou.txt","rockyou.txt"],
   "hcatHybridlist": ["rockyou.txt"],