Fix CI: remove Rust-only jobs, replace with editor test suite

- Remove fmt, clippy, cargo-test jobs (no Cargo.toml in this repo)
- Consolidate editor tests into a single  job
- Remove release.yaml (binary build/release is in nuwiki-rs)
- Update ONBOARDING.md repo structure diagram
- Run CI on both Neovim 0.11 and latest

.gitea/workflows/ci.yaml

@@ -6,123 +6,63 @@ on:
   pull_request:
     branches: [main]
 
-env:
-  CARGO_TERM_COLOR: always
-  RUST_BACKTRACE: "1"
-  RUSTFLAGS: -D warnings
-
 jobs:
-  fmt:
-    name: cargo fmt --check
+  editor-tests:
+    name: editor tests
     runs-on: ubuntu-latest
-    timeout-minutes: 5
+    timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.83
-        with:
-          components: rustfmt
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-fmt-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-fmt-
-      - run: cargo fmt --all -- --check
 
-  clippy:
-    name: cargo clippy
-    runs-on: ubuntu-latest
-    timeout-minutes: 5
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.83
-        with:
-          components: clippy
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-clippy-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-clippy-
-      - run: cargo clippy --workspace --all-targets -- -D warnings
-
-  test:
-    name: cargo test
-    runs-on: ubuntu-latest
-    timeout-minutes: 5
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.83
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-test-
-      - run: cargo test --workspace --all-targets
-
-  keymaps:
-    name: editor keymaps
-    runs-on: ubuntu-latest
-    # Serialise behind the cargo jobs so we never compete with them
-    # for runners, and inherit their warm cargo cache instead of
-    # forcing a release build of our own.
-    needs: test
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.83
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-test-
       - name: install Neovim + Vim
         run: |
           set -euo pipefail
           # Test the minimum supported Neovim version (0.11.0) so we
           # catch API regressions at the bottom of the supported range.
-          # Pinning to a specific patch version; bump when 0.12 ships.
           NVIM_VER=v0.11.0
           curl -fsSL -o /tmp/nvim.tar.gz \
             "https://github.com/neovim/neovim/releases/download/${NVIM_VER}/nvim-linux-x86_64.tar.gz"
           sudo tar -xzf /tmp/nvim.tar.gz -C /opt
           sudo ln -sf /opt/nvim-linux-x86_64/bin/nvim /usr/local/bin/nvim
           nvim --version | head -1
-          # Vim from apt is fine — only the pure-VimL keymaps run there.
           sudo apt-get update -qq
           sudo apt-get install -y --no-install-recommends vim
           vim --version | head -1
+
+      - name: install Neovim (latest)
+        run: |
+          set -euo pipefail
+          curl -fsSL -o /tmp/nvim.tar.gz \
+            "https://github.com/neovim/neovim/releases/latest/download/nvim-linux-x86_64.tar.gz"
+          sudo tar -xzf /tmp/nvim.tar.gz -C /opt
+          sudo ln -sf /opt/nvim-linux-x86_64/bin/nvim /usr/local/bin/nvim
+
       - name: run Neovim keymap harness
         run: ./development/tests/test-keymaps.sh
+
       - name: run Vim keymap harness
         run: ./development/tests/test-keymaps-vim.sh
+
       - name: run Neovim config parity harness
         run: ./development/tests/test-config.sh
+
       - name: run Vim config parity harness
         run: ./development/tests/test-config-vim.sh
+
       - name: run Neovim calendar integration harness
         run: ./development/tests/test-calendar.sh
+
       - name: run Vim calendar integration harness
         run: ./development/tests/test-calendar-vim.sh
+
       - name: run Vim vars-shim harness
         run: ./development/tests/test-vars-vim.sh
+
       - name: run Vim vimwiki-config compat harness
         run: ./development/tests/test-vimwiki-compat-vim.sh
+
       - name: run Neovim global-shorthand harness
         run: ./development/tests/test-global-shorthand.sh
+
       - name: run Vim coc-registration harness
-        run: ./development/tests/test-coc-register-vim.sh
+        run: ./development/tests/test-coc-register-vim.sh