Initial commit: Vestige v1.0.0 - Cognitive memory MCP server

FSRS-6 spaced repetition, spreading activation, synaptic tagging,
hippocampal indexing, and 130 years of memory research.

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

.github/workflows/test.yml

@@ -0,0 +1,94 @@
+name: Test Suite
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+  ENGRAM_TEST_MOCK_EMBEDDINGS: "1"
+
+jobs:
+  unit-tests:
+    name: Unit Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --workspace --lib
+
+  mcp-tests:
+    name: MCP E2E Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo build --release --package engram-mcp
+      - run: cargo test --package engram-e2e --test mcp_protocol -- --test-threads=1
+
+  cognitive-tests:
+    name: Cognitive Science Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --package engram-e2e --test cognitive -- --test-threads=1
+
+  journey-tests:
+    name: User Journey Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    needs: [unit-tests]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --package engram-e2e --test journeys -- --test-threads=1
+
+  extreme-tests:
+    name: Extreme Validation Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --package engram-e2e --test extreme -- --test-threads=1
+
+  benchmarks:
+    name: Performance Benchmarks
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo bench --package engram-e2e
+      - uses: benchmark-action/github-action-benchmark@v1
+        with:
+          tool: 'cargo'
+          alert-threshold: '150%'
+          comment-on-alert: true
+
+  coverage:
+    name: Code Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: llvm-tools-preview
+      - uses: taiki-e/install-action@cargo-llvm-cov
+      - run: cargo llvm-cov --workspace --lcov --output-path lcov.info
+      - uses: codecov/codecov-action@v3
+        with:
+          files: lcov.info