Add statusline scripts, context-load improvements, and prior distill updates

- Add statusline.sh and set-topic.sh for per-session status line topics
- Update context-load with improved directory walking and output format
- Update CLAUDE.md with status line docs and early-call safety note
- Update MEMORY.md and README.md with new script/skill entries
- Add memory files: script-statusline, skill-decompose, skill-orchestrate, gotchas-gitea
- Add networking.md best practice (nftables, systemd sockets, Docker forwarding, TLS)
- Update best practices from prior distill: documentation, kubernetes, scripting,
  secrets-management, skills-development
- Prune reflected session logs, add new session logs
- Update reflection state

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/statusline.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+# Claude Code status line: shows topic, model, and context usage
+# Reads session JSON from stdin, displays topic from per-session file
+
+set -euo pipefail
+
+DATA=$(cat)
+
+SESSION_ID=$(echo "$DATA" | jq -r '.session_id // empty')
+MODEL=$(echo "$DATA" | jq -r '.model.display_name // "unknown"')
+CONTEXT_PCT=$(echo "$DATA" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)
+
+TOPIC=""
+if [[ -n "$SESSION_ID" ]]; then
+    # Write session ID to a known location so Claude can discover it
+    CWD=$(echo "$DATA" | jq -r '.cwd // empty')
+    if [[ -n "$CWD" ]]; then
+        HASH=$(echo -n "$CWD" | md5sum | cut -d' ' -f1)
+        echo "$SESSION_ID" > "/tmp/claude-session-id-$HASH"
+
+        # Apply any pending topic that was set before the session ID existed
+        PENDING_FILE="/tmp/claude-pending-topic-$HASH"
+        if [[ -f "$PENDING_FILE" ]]; then
+            TOPIC_DIR="$HOME/.claude/status/$SESSION_ID"
+            mkdir -p "$TOPIC_DIR"
+            mv "$PENDING_FILE" "$TOPIC_DIR/claude-topic.txt"
+        fi
+    fi
+
+    TOPIC_FILE="$HOME/.claude/status/$SESSION_ID/claude-topic.txt"
+    if [[ -f "$TOPIC_FILE" ]]; then
+        TOPIC=$(cat "$TOPIC_FILE")
+    fi
+fi
+
+if [[ -n "$TOPIC" ]]; then
+    echo "[$MODEL] $TOPIC | ${CONTEXT_PCT}% context"
+else
+    echo "[$MODEL] ${CONTEXT_PCT}% context"
+fi