Merge pull request 'chore(release): cut edge over to main — protocol 14' (#32) from edge into main

Reviewed-on: #32

.gitea/workflows/pr-checks.yml

@@ -69,17 +69,18 @@ jobs:
           rustup target add x86_64-pc-windows-gnu
           cargo --version && cargo fmt --version && cargo clippy --version
 
-      # Dependency builds are reused until a dep actually changes; a cache miss
+      # Keyed on Cargo.lock: dependency builds are reused until a dep actually
-      # only makes the run slower, never wrong. rust-cache rather than a plain
+      # changes. A cache miss only makes the run slower, never wrong.
-      # actions/cache of target/: it strips this crate's own artifacts and
+      - name: Cache cargo registry and build dir
-      # anything stale before saving, and saves only on a miss. The plain cache
+        uses: actions/cache@v4
-      # restored the previous target/ and re-saved all of it under every new
-      # Cargo.lock, so each entry carried every older build and the runner's
-      # cache grew without bound.
-      - name: Cache cargo registry and dependency builds
-        uses: Swatinem/rust-cache@v2
         with:
-          workspaces: sidecar -> target
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            sidecar/target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('sidecar/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
 
       # Cheapest gate first — parses only, no compile, so a formatting slip fails
       # in seconds instead of after a full build.