feat: auto-bump fable-mcp patch version on commit via Claude Code hook

- scripts/bump_fable_mcp_version.sh: increments patch in pyproject.toml and stages it
- scripts/pre_commit_fable_mcp.sh: PreToolUse Bash hook — fires before git commits,
  bumps version if fable-mcp files (other than pyproject.toml itself) are staged
- .claude/settings.json: registers the PreToolUse hook

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/bump_fable_mcp_version.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Bump the patch segment of fable-mcp/pyproject.toml version and stage the file.
+# Usage: called automatically by the Claude Code pre-commit hook, or manually.
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+FILE="$REPO_ROOT/fable-mcp/pyproject.toml"
+
+current=$(grep '^version = ' "$FILE" | sed 's/version = "\(.*\)"/\1/')
+major=$(echo "$current" | cut -d. -f1)
+minor=$(echo "$current" | cut -d. -f2)
+patch=$(echo "$current" | cut -d. -f3)
+new_version="$major.$minor.$((patch + 1))"
+
+sed -i "s/^version = \"$current\"/version = \"$new_version\"/" "$FILE"
+git -C "$REPO_ROOT" add "$FILE"
+echo "fable-mcp: $current → $new_version"

scripts/pre_commit_fable_mcp.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Claude Code PreToolUse hook for Bash.
+# Reads the tool input JSON from stdin; if the command is a git commit
+# and fable-mcp files (other than pyproject.toml) are staged, bumps
+# the fable-mcp patch version before the commit proceeds.
+#
+# Exits 0 always so it never blocks the commit.
+
+set -euo pipefail
+
+REPO_ROOT="/home/bvandeusen/Nextcloud/Projects/fabledassistant"
+
+input=$(cat)
+command=$(echo "$input" | python3 -c "
+import sys, json
+data = json.load(sys.stdin)
+# Claude Code sends {tool_input: {command: ...}}
+ti = data.get('tool_input', data)
+print(ti.get('command', ''))
+" 2>/dev/null || echo "")
+
+# Only act on git commit commands
+if ! echo "$command" | grep -qE "git commit"; then
+  exit 0
+fi
+
+cd "$REPO_ROOT"
+
+# Check if fable-mcp files other than pyproject.toml are staged
+fable_staged=$(git diff --cached --name-only 2>/dev/null \
+  | grep "^fable-mcp/" \
+  | grep -v "^fable-mcp/pyproject.toml$" \
+  || true)
+
+if [ -n "$fable_staged" ]; then
+  bash "$REPO_ROOT/scripts/bump_fable_mcp_version.sh"
+fi
+
+exit 0