chezmoi v2: omz + p10k + fzf + vi-mode zsh, tmux, per-account gitconfig (#612)

Rewrote the Aug-1 sandbox-era source into a full workstation setup for
both ultix-streaming accounts: oh-my-zsh with autosuggestions/
syntax-highlighting/completions + powerlevel10k (pinned externals),
fzf wiring, vi mode, tmux conf, aliases under ~/.config/zsh, gitconfig
template that keeps hooksPath/tea for reachableceo only.

Detail + verification: https://projects.knownelement.com/issues/612#note-3335

private_dot_config/crush/crush.json

@@ -1,8 +1,11 @@
 {
-  "$schema": "https://charm.land/crush.json",
-  "options": {
-    "attribution": {
-      "trailer_style": "none"
-    }
+  "hooks": {
+    "PreToolUse": [
+      {
+        "matcher": "^(bash|edit|write|multiedit|lsp_replace_symbol|lsp_rename)$",
+        "command": "/home/reachableceo/projects/ukrrs/TSYSGroupAIOS/hooks/global/ticket-gate.sh",
+        "timeout": 5
+      }
+    ]
   }
-}
+}