feat: add multi-daemon support with session routing and connection management

Introduce DaemonRegistry and DaemonConnections contexts for managing multiple server connections. Add session directory for aggregating agents across daemons, with automatic routing based on agent/server context.

Key changes:
- Add daemon profile management (add/edit/remove/set default)
- Implement connection state tracking with reconnection and exponential backoff
- Create useAggregatedAgents hook for unified agent list across daemons
- Add useDaemonSession and useDaemonRequest hooks for daemon-scoped operations
- Update agent routes to include serverId for proper session routing
- Add connection health indicators on home screen and settings
- Persist session snapshots per daemon for faster hydration on reconnect
- Guard screens gracefully when target daemon is offline
- Add React Query for consistent loading/error state management

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

scripts/run-plan-loop.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PLAN_FILE=${1:-plan.md}
+if [[ ! -f "$PLAN_FILE" ]]; then
+  echo "Plan file not found: $PLAN_FILE" >&2
+  exit 1
+fi
+
+REPO_ROOT=$(cd "$(dirname "$PLAN_FILE")" && pwd)
+PLAN_PATH="$REPO_ROOT/$(basename "$PLAN_FILE")"
+IMPLEMENT_PROMPT=$(cat <<EOF2
+You are Codex working in $REPO_ROOT.
+1. Read the checklist at $PLAN_PATH.
+2. Implement the very first unchecked task (top-most "- [ ]" entry) completely. Do not skip around.
+3. After finishing the work, update $PLAN_PATH:
+   - Change that task marker to "- [x]".
+   - Under that list item add an indented bullet summarizing the work/tests/follow-ups.
+4. Stop immediately after completing that single task.
+EOF2
+)
+REVIEW_PROMPT=$(cat <<EOF3
+You are Codex acting as a reviewer.
+1. Read $PLAN_PATH and inspect the repository.
+2. Review the work completed in the prior step: hunt for duplicate code, missing types, bugs, regressions, or corners that were cut.
+3. If something is wrong, fix it or add new checklist items describing the follow-up.
+4. Reorder or uncheck tasks when needed and always add context lines so we know what changed.
+5. Stop after updating $PLAN_PATH with your findings (new tasks, reopened ones, etc.).
+EOF3
+)
+
+iteration=1
+while grep -q '\- \[ \]' "$PLAN_PATH"; do
+  echo "=== Iteration $iteration: implement next task ==="
+  codex exec --dangerously-bypass-approvals-and-sandbox -C "$REPO_ROOT" "$IMPLEMENT_PROMPT"
+
+  echo "=== Iteration $iteration: review & adjust plan ==="
+  codex exec --dangerously-bypass-approvals-and-sandbox -C "$REPO_ROOT" "$REVIEW_PROMPT"
+
+  iteration=$((iteration + 1))
+done
+
+echo "All tasks in $PLAN_PATH are complete."