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

static/data/summary.json

@@ -0,0 +1 @@
+{"api_version":"1.0.0","sources":[{"source":"trends","available":true,"count":1,"last_updated":"2026-03-29T06:40:01Z"},{"source":"disk","available":true,"count":1,"last_updated":"2026-05-26"},{"source":"health","available":true,"count":1,"last_updated":""},{"source":"state","available":true,"count":3,"last_updated":""},{"source":"events","available":true,"count":5,"last_updated":"2026-05-26T09:44"}],"estate":{"disk_latest":76,"health_status":"check /health/status","recent_events":[{"timestamp":"2026-05-26T09:44","source":"heartbeat","detail":"Estate health sweep — verified all 4 scout findings stale (AGENTS.md 6/6 releases, playground top-level active workspace, napkin corpus extracted, retired seeds handled). Stale HEARTBEAT Status corrected: Drift 5→3 (yellow), Disk 75%→79% (3.7G free). SCOREBOARD updated for this wake. Rig: gateway OK"},{"timestamp":"2026-05-26T01:00","source":"heartbeat","detail":"Verified all 4 scout findings stale/resolved per REPO_LEDGER, current fs counts, and recent changelog (AGENTS.md present in playground/releases; playground migrated to top-level active workspace; napkin/knowledge corpus extracted to vault + tnt-005 release at ~110 files). Rig healthy (gateway + 1 jo"},{"timestamp":"2026-05-25T21:53","source":"heartbeat","detail":"Phase 3 verification: forgejo-sovereign-forge SSH push confirmed functional via localhost:2222 (a-team, trentuna-web in sync — both dry-run clean). Moved change from Active to Implemented on CHANGE_BOARD. Fixed stale tasks.md (Phase 3 was marked Blocked but resolved). Created kanban task for a-team "}]}}