revive: garden rebranded to Vigo + Estate API dashboard

- Rebrand from Vigilio Desto → Vigo, the Watcher of Trentuna
- Updated hugo.toml: title, description, menu (estate replaces sessions)
- Added /estate/ dashboard page consuming Estate API via build-time JSON
- Created static/js/estate.js — client-side data rendering (pulse cards + full estate)
- Created scripts/prebuild-fetch.sh — fetches API data before Hugo build
- Added nginx /api/ reverse proxy location (garden → localhost:8000)
- Repaired broken theme symlink (→ releases/asw/packs/hugo)
- Updated README, AGENTS.md, .gitignore for Hugo build artifacts
- Site builds clean: 206 pages, 79ms

scripts/prebuild-fetch.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+# prebuild-fetch.sh — Fetch Estate API data at build time and save as static JSON
+#
+# Called before `hugo` to populate static/data/ with API snapshots.
+# The estate.js client reads from /data/*.json as the primary source.
+#
+# Usage: bash scripts/prebuild-fetch.sh
+
+set -euo pipefail
+
+DIR="$(cd "$(dirname "$0")/.." && pwd)"
+DATA_DIR="${DIR}/static/data"
+API_HOST="${API_HOST:-http://127.0.0.1:8000}"
+API_KEY="trentuna-estate-key-2026"
+
+mkdir -p "$DATA_DIR"
+
+ENDPOINTS=(
+  "summary"
+  "health"
+  "disk"
+  "events?limit=10"
+  "repos"
+  "providers"
+  "builds"
+  "trends?limit=5"
+  "state"
+)
+
+echo "→ Fetching Estate API data for garden build…"
+
+for ep in "${ENDPOINTS[@]}"; do
+  filename="$(echo "$ep" | sed 's/[?&=/]/-/g' | sed 's/--*/-/g' | sed 's/^-//')"
+  url="${API_HOST}/${ep}"
+
+  if json=$(curl -sf -H "X-API-Key: ${API_KEY}" "$url" 2>/dev/null); then
+    echo "$json" > "${DATA_DIR}/${filename}.json"
+    echo "  ✓ ${ep} → ${filename}.json ($(echo "$json" | wc -c) bytes)"
+  else
+    echo "  ✗ ${ep} — API unreachable"
+    echo '{"error":true,"message":"API unavailable at build time"}' > "${DATA_DIR}/${filename}.json"
+  fi
+done
+
+echo "→ Done. ${#ENDPOINTS[@]} endpoints cached."