chore: add Claude tooling and optimize token efficiency

- .claude/scripts/bump.sh: one-command version bump + commit + push
- .claude/scripts/new-feature.sh: branch creation helper
- .claude/session-context.md: session start context
- CLAUDE.md: reduced to dispatch table, no rule duplication
- docs/project-structure.md: restructured as dense module reference

Version: 0.2.1

.claude/scripts/new-feature.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# new-feature.sh – Feature- oder Fix-Branch aus develop erstellen und pushen
+#
+# Verwendung:
+#   bash .claude/scripts/new-feature.sh feature <name>
+#   bash .claude/scripts/new-feature.sh fix <name>
+#   bash .claude/scripts/new-feature.sh debug <name>
+
+set -euo pipefail
+
+TYPE="${1:-}"
+NAME="${2:-}"
+
+if [[ -z "$TYPE" || -z "$NAME" ]]; then
+  echo "Verwendung: bash .claude/scripts/new-feature.sh [feature|fix|debug] <name>"
+  exit 1
+fi
+
+case "$TYPE" in
+  feature|fix|debug) ;;
+  *)
+    echo "Fehler: Ungültiger Typ '$TYPE'. Erlaubt: feature, fix, debug"
+    exit 1
+    ;;
+esac
+
+BRANCH="$TYPE/$NAME"
+ROOT="$(git rev-parse --show-toplevel)"
+
+# Sicherstellen dass develop aktuell ist
+echo "Wechsle zu develop und aktualisiere..."
+git -C "$ROOT" checkout develop
+git -C "$ROOT" pull origin develop
+
+# Branch erstellen und pushen
+echo "Erstelle Branch: $BRANCH"
+git -C "$ROOT" checkout -b "$BRANCH"
+git -C "$ROOT" push -u origin "$BRANCH"
+
+echo "Fertig: Branch '$BRANCH' erstellt und gepusht."
+echo "Aktiver Branch: $(git -C "$ROOT" branch --show-current)"