feat(discord-bridge): punte Discord -> Claude Code pe LXC 171

Implementeaza planul claude-master-plan-discord-bridge-20260830 (15 taskuri,
3 lane-uri paralele) — un bot subtire discord.py peste CLI-ul `claude`, cu
proces persistent per fir alimentat pe stdin cu --input-format stream-json.

Nucleu: runner (proces persistent + reaper 20min + respawn --resume), stream
(parser tolerant), session_store (scriere atomica, lock per fir, detectare PID
reuse, recovery), limits (max 4 procese, timeout tur, rate per user, plafon cost
pe zi), render (un loop de editare per canal, interval adaptiv).

Adaptor: allowlist guild/canal/user fail-closed cu respingerea webhook-urilor,
comenzi !new/!cd/!model/!status/!stop/!cleanup, cost si model in subsolul
fiecarui raspuns. Mesajul sosit in timpul unui tur devine steering, nu tur nou.

Securitate: hook PreToolUse fail-closed care cere confirmare in Discord pentru
operatiuni ireversibile, wrapper `infra` cu lista explicita de hosturi. Deny
rules raman strat cosmetic, nu bariera (verificat: /usr/bin/ssh trece pe langa).

Ops: alerte email pe conventia repo-ului, !cleanup pentru orfani, unit systemd
user cu KillMode=control-group si limite de memorie, install.sh idempotent.

Verificat: 275 teste fara retea/Discord/API (10.8s), identic cu si fara
discord.py instalat; e2e pe CLI real confirma steering-ul mid-tur (mesaj la 6s
intr-un tool call de 25s schimba raspunsul final).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B29CApsP1JkSdjYaGaHpE7

proxmox/lxc171-claude-agent/discord-bridge/security/bot-settings.json.example

@@ -0,0 +1,27 @@
+{
+  "_comentariu": "Sablon pentru ~/.claude-discord/bot-settings.json, pasat cu --settings. Copiaza-l si ajusteaza calea absoluta a hook-ului daca repo-ul nu e in /workspace/romfastsql.",
+  "hooks": {
+    "PreToolUse": [
+      {
+        "matcher": "Bash",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "python3 /workspace/romfastsql/proxmox/lxc171-claude-agent/discord-bridge/security/confirm_hook.py",
+            "timeout": 330
+          }
+        ]
+      }
+    ]
+  },
+  "permissions": {
+    "_comentariu": "STRAT COSMETIC, NU BARIERA: sub --permission-mode bypassPermissions regulile deny nu opresc /usr/bin/ssh sau bash -c \"ssh\". Bariera reala e hook-ul PreToolUse de mai sus.",
+    "deny": [
+      "Bash(ssh:*)",
+      "Bash(scp:*)",
+      "Bash(pct destroy:*)",
+      "Bash(qm destroy:*)",
+      "Bash(zfs destroy:*)"
+    ]
+  }
+}