feat: complete Dirigent rename + all TASKLIST items

- Task 1: Identity prompt now includes Discord userId
- Task 2: Added configurable schedulingIdentifier (default: ➡️)
- Task 3: Moderator handoff uses <@userId>+identifier instead of semantic messages
- Task 4: All prompts/comments/help text converted to English
- Task 5: Full project rename WhisperGate → Dirigent across all files

Breaking: config key changed from plugins.entries.whispergate to plugins.entries.dirigent
Breaking: channel policies file renamed to dirigent-channel-policies.json
Breaking: tool name changed from whispergate_tools to dirigent_tools

scripts/dev-up.sh

@@ -4,10 +4,10 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
 cd "$ROOT_DIR"
 
-echo "[whispergate] building/starting no-reply API container"
-docker compose up -d --build whispergate-no-reply-api
+echo "[dirigent] building/starting no-reply API container"
+docker compose up -d --build dirigent-no-reply-api
 
-echo "[whispergate] health check"
+echo "[dirigent] health check"
 curl -sS http://127.0.0.1:8787/health
 
-echo "[whispergate] done"
+echo "[dirigent] done"