Playground cross-catalog indicator strategy chart

Objective

Move the configurable indicator strategy chart out of Other / Indicators into a dedicated Playground page while preserving the published indicator catalogs and providing basic market signal choices.

Approach

• Added Playground to the primary site navigation, Home routing, legacy Signals redirect, and generated static page shells.
• Merged all published AllocateSmartly monthly risk-off indicators and Other daily signals into a namespaced daily catalog.
• Added close above/below 50-day and 200-day SMA events, 50/200 golden/death cross events, and a 3x Wilder ATR(14) trailing stop using published SPY high/low data with a close-only fallback.
• Preserved independent buy/sell multi-select groups, AND/OR aggregation, sell precedence, one-bar lag, source-colored markers, diagnostic series, and comparative strategy statistics.
• Removed the interactive builder from Other / Indicators; its published cards remain available as the catalog source.

Files changed

• research/reports/nav.py
• research/reports/home_publish.py
• research/reports/section_pages.py
• research/reports/templates/pages/playground.html.j2
• research/reports/templates/pages/indicators.html.j2
• research/reports/signals_publish.py
• research/risk_signals_history.py
• docs/assets/js/site.js
• docs/assets/css/site.css
• docs/playground.html
• docs/other-indicators.html
• docs/site-data/signals/history.json
• tests/test_signals_page.py
• tests/test_site_ia.py
• tests/test_risk_signals_history.py
• tests/test_risk_off_dashboard_browser.py

Validation

• python3 -m pytest -q tests/test_signals_page.py tests/test_site_ia.py tests/test_risk_signals_history.py tests/test_home_dashboard.py --tb=short — 48 passed.
• python3 -m pytest -q tests/test_risk_off_dashboard_browser.py --tb=short — 5 passed.
• node --check docs/assets/js/site.js && node --check docs/assets/js/charts.js — passed.
• python3 research/scripts/check_static_reports.py docs — 1,455 files and 183 canary routes valid.
• python3 -m research.artifacts check --mode full --offline — deterministic shared artifacts current after rebuild.
• Browser smoke on the actual local Playground loaded 40 choices, rendered three charts, observed all 40 distinct catalog colors, and displayed source-labeled marker datasets plus comparative Strategy/S&P statistics after selecting AllocateSmartly, Other, ATR, and crossover signals.