feat(skill): add timesfm-forecasting Agent Skill (agentskills.io)

Add a self-contained AI agent skill for TimesFM that teaches coding
agents (Claude Code, OpenCode, Cursor, Codex) how to use the TimesFM
API correctly — safe model loading, zero-shot forecasting, covariate
workflows, anomaly detection, and the most common pitfalls.

Files added:
- AGENTS.md             — auto-loaded skill document (root of repo)
- claude-skill/scripts/check_system.py    — mandatory preflight RAM/GPU/disk checker
- claude-skill/scripts/forecast_csv.py   — CLI wrapper for CSV forecasting
- claude-skill/references/               — ForecastConfig API ref, data prep, HW reqs
- claude-skill/examples/global-temperature/   — basic forecast + PNG/GIF pipeline
- claude-skill/examples/anomaly-detection/    — two-phase detrend+Z-score + quantile PI
- claude-skill/examples/covariates-forecasting/ — forecast_with_covariates() XReg demo
- .gitattributes        — Git LFS rules for PNG/GIF binary outputs

Contributed by Clayton Young / Superior Byte Works LLC (@borealBytes)
Apache 2.0 — same license as this repository

claude-skill/examples/global-temperature/run_example.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+# run_example.sh - Run the TimesFM temperature anomaly forecasting example
+#
+# This script:
+# 1. Runs the preflight system check
+# 2. Runs the TimesFM forecast
+# 3. Generates the visualization
+#
+# Usage:
+#   ./run_example.sh
+#
+# Prerequisites:
+#   - Python 3.10+
+#   - timesfm[torch] installed: uv pip install "timesfm[torch]"
+#   - matplotlib, pandas, numpy
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SKILL_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
+
+echo "============================================================"
+echo "  TimesFM Example: Global Temperature Anomaly Forecast"
+echo "============================================================"
+
+# Step 1: Preflight check
+echo ""
+echo "🔍 Step 1: Running preflight system check..."
+python3 "$SKILL_ROOT/scripts/check_system.py" || {
+    echo "❌ Preflight check failed. Please fix the issues above before continuing."
+    exit 1
+}
+
+# Step 2: Run forecast
+echo ""
+echo "📊 Step 2: Running TimesFM forecast..."
+cd "$SCRIPT_DIR"
+python3 run_forecast.py
+
+# Step 3: Generate visualization
+echo ""
+echo "📈 Step 3: Generating visualization..."
+python3 visualize_forecast.py
+
+echo ""
+echo "============================================================"
+echo "  ✅ Example complete!"
+echo "============================================================"
+echo ""
+echo "Output files:"
+echo "  - $SCRIPT_DIR/output/forecast_output.csv"
+echo "  - $SCRIPT_DIR/output/forecast_output.json"
+echo "  - $SCRIPT_DIR/output/forecast_visualization.png"