Add log ingestion tool for loading signature logs into SQLite

- Parse signature messages from log files extracting app info, device
  details, and feature flags (autofill, touchID, offline login, etc.)
- Support both plain .log and gzip compressed .log.gz files
- File discovery by date range (YYYY/mm/dd directory structure)
- Batch inserts for performance with large files (10GB+ per day)
- Index on session_id and version for efficient queries
- Extensible parser architecture via MessageParser trait

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/benchmark.yaml

@@ -0,0 +1,39 @@
+name: Benchmark
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '**/*.rs'
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+      - '.github/workflows/benchmark.yaml'
+
+permissions:
+  contents: write
+  deployments: write
+
+jobs:
+  benchmark:
+    name: Run Rust benchmark example
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - name: Toolchain setup
+        run: rustup toolchain update nightly && rustup default nightly
+      - name: Run benchmark
+        run: cargo +nightly bench | tee output.txt
+
+      - name: Store benchmark result
+        uses: benchmark-action/github-action-benchmark@4bdcce38c94cec68da58d012ac24b7b1155efe8b # v1.20.7
+        with:
+          name: Rust Benchmark
+          tool: 'cargo'
+          output-file-path: output.txt
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          auto-push: true
+          # Show alert with commit comment on detecting possible performance regression
+          alert-threshold: '200%'
+          comment-on-alert: true
+          fail-on-alert: true
+          benchmark-data-dir-path: docs