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
- Parallel file processing for multi-day ingestion

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

.github/workflows/ci.yaml

@@ -0,0 +1,97 @@
+name: Rust CI
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - '**/*.rs'
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+      - '.github/workflows/ci.yaml'
+
+  pull_request:
+    paths:
+      - '**/*.rs'
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+      - '.github/workflows/ci.yaml'
+
+env:
+  CARGO_TERM_COLOR: always
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    name: Check
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          fetch-depth: 0
+
+      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+        with:
+          components: rustfmt, clippy
+          cache-shared-key: setup-rust-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Install reviewdog
+        uses: reviewdog/action-setup@d8a7baabd7f3e8544ee4dbde3ee41d0011c3a93f # v1.5.0
+
+      - name: Check format
+        run: |
+          cargo fmt --all -- --check
+
+      - uses: giraffate/clippy-action@13b9d32482f25d29ead141b79e7e04e7900281e0 # v1.0.1
+        with:
+          reporter: 'github-pr-review'
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          fail_on_error: true
+          filter_mode: nofilter
+
+      - name: Build
+        run: cargo build
+
+  test:
+    name: Test
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          fetch-depth: 0
+
+      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+        with:
+          components: llvm-tools-preview
+          cache-shared-key: setup-rust-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Install tools
+        uses: taiki-e/install-action@30eab0fabba9ea3f522099957e668b21876aa39e # v2.66.6
+        with:
+          tool: cargo-llvm-cov, cargo-nextest
+
+      - name: Run test
+        if: runner.os != 'Linux'
+        run: |
+          cargo nextest run
+
+      - name: Generate coverage
+        if: runner.os == 'Linux'
+        run: cargo llvm-cov nextest --lcov --output-path lcov.info
+
+      - name: Upload coverage
+        if: runner.os == 'Linux'
+        uses: k1LoW/octocov-action@73d561f65d59e66899ed5c87e4621a913b5d5c20 # v1.5.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}