feat: add Copilot hooks for OSF schedule context and auto-refresh

- SessionStart: prints upcoming streams table at session open
- PostToolUse: re-runs update_schedule.py when schedule script or issue templates are edited

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: AndreaGriffiths11

.github/hooks/osf-schedule.json

@@ -0,0 +1,20 @@
+{
+  "hooks": {
+    "SessionStart": [
+      {
+        "type": "command",
+        "command": "bash .github/hooks/scripts/show-schedule.sh",
+        "cwd": ".",
+        "timeout": 10
+      }
+    ],
+    "PostToolUse": [
+      {
+        "type": "command",
+        "command": "bash .github/hooks/scripts/on-tool-use.sh",
+        "cwd": ".",
+        "timeout": 60
+      }
+    ]
+  }
+}

.github/hooks/scripts/on-tool-use.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# PostToolUse hook: re-run the schedule script when relevant files are edited
+set -euo pipefail
+
+# Read hook payload from stdin
+PAYLOAD=$(cat)
+
+# Extract the file path touched (works for editFiles, createFile, apply_patch, str_replace_editor)
+TOUCHED=$(echo "$PAYLOAD" | python3 -c "
+import json, sys
+try:
+    p = json.load(sys.stdin)
+    inp = p.get('input', {})
+    # Different tools use different field names
+    path = (
+        inp.get('filePath') or
+        inp.get('path') or
+        inp.get('target_file') or
+        ''
+    )
+    print(path)
+except Exception:
+    print('')
+" 2>/dev/null || true)
+
+# Only re-run the schedule script if a relevant file was edited
+case "$TOUCHED" in
+  .github/scripts/update_schedule.py|\
+  .github/ISSUE_TEMPLATE/*.yml|\
+  README.md)
+    echo "[osf-hook] Detected edit to '$TOUCHED' — refreshing schedule table..."
+    if [ -z "${GITHUB_TOKEN:-}" ]; then
+      echo "[osf-hook] GITHUB_TOKEN not set, skipping schedule refresh."
+      exit 0
+    fi
+    python3 .github/scripts/update_schedule.py
+    echo "[osf-hook] Schedule table updated."
+    ;;
+  *)
+    exit 0
+    ;;
+esac

.github/hooks/scripts/show-schedule.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# SessionStart hook: print the current upcoming streams so Copilot has context
+set -euo pipefail
+
+echo "=== Open Source Friday – Upcoming Streams ==="
+awk '/<!-- SCHEDULE_START -->/,/<!-- SCHEDULE_END -->/' README.md | grep -v "SCHEDULE_" || echo "(No schedule table found)"
+echo ""