chore: bump mcpp to 0.0.12 + fix dependency syntax

- .xlings.json: mcpp 0.0.11 → 0.0.12 (install_dir_candidates fix)
- mcpp.toml: use bare name `tinyhttps` (default ns is mcpplibs)
- CI: clean up debug steps, update cache key to 0.0.12

Author: Sunrisepeak

.github/workflows/ci.yml

@@ -23,29 +23,17 @@ jobs:
           "/tmp/xlings-${XLINGS_VERSION}-linux-x86_64/subos/default/bin/xlings" self install
           echo "$HOME/.xlings/subos/current/bin" >> "$GITHUB_PATH"
 
-      - name: Install workspace tools (.xlings.json → mcpp 0.0.11)
+      - name: Install workspace tools (.xlings.json → mcpp 0.0.12)
         run: xlings install -y
 
-      # Cache mcpp's self-bootstrapped sandbox (musl-gcc + binutils +
-      # glibc + ninja + patchelf, ~800 MB). Toolchain set is pinned by
-      # mcpp 0.0.11, so a fixed key suffices.
       - name: Cache mcpp sandbox
         uses: actions/cache@v4
         with:
-          path: ~/.xlings/data/xpkgs/xim-x-mcpp/0.0.11/registry
-          key: mcpp-sandbox-${{ runner.os }}-mcpp0.0.11-v2
+          path: ~/.xlings/data/xpkgs/xim-x-mcpp/0.0.12/registry
+          key: mcpp-sandbox-${{ runner.os }}-mcpp0.0.12
 
       - name: Update package index
         run: mcpp index update
 
       - name: Build with mcpp
-        run: |
-          mcpp build 2>&1 || {
-            echo "=== MCPP ENV ==="
-            mcpp self env 2>&1 || true
-            echo "=== XPKGS DIR ==="
-            MCPP_HOME_DIR=$(mcpp self env 2>&1 | grep 'MCPP_HOME' | head -1 | sed 's/.*= *//')
-            find "$MCPP_HOME_DIR" -path "*/xpkgs/*tinyhttps*" -maxdepth 5 2>/dev/null || echo "not found in MCPP_HOME"
-            find ~/.xlings -path "*/xpkgs/*tinyhttps*" -maxdepth 5 2>/dev/null || echo "not found in ~/.xlings"
-            exit 1
-          }
+        run: mcpp build

.xlings.json

@@ -1,5 +1,5 @@
 {
   "workspace": {
-    "mcpp": { "linux": "0.0.11" }
+    "mcpp": { "linux": "0.0.12" }
   }
 }

mcpp.toml

@@ -13,4 +13,4 @@ include_dirs = ["src/json"]
 kind = "lib"
 
 [dependencies]
-"mcpplibs.tinyhttps" = "0.2.2"
+tinyhttps = "0.2.2"