Merge branch 'claude/forward-project-args': sibling projects inherit the args, lint with the lite rules

PR #40. GitProject and LocalProject default their args to the loading
project's own (ProjectArgs()), this tree lints with LintRules' lite
set, and the fixes from the branch's review: a project file gets its
args only for the CrafterBuildProject call, host tooling gets project
cache entries of its own, and `--` ends crafter-build's options.

The conflicts with claude/dependency-notes are all places both sides
added to:
- Platform.cppm and Platform.cpp: PragmaDependencies() beside
  ProjectArgs() and LoadingHostTooling(), all three kept.
- LoadProject: the record PragmaDependencies() reads moves up with the
  frame's dependencies, which this branch sets before dlopen. Left
  where it was, it would have copied preDeps.configs after the vector
  was moved into the frame, and recorded nothing.
- README: the pragma section's new last sentence goes before the new
  "Dependency notes for agents" section.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

interfaces/Crafter.Build-Platform.cppm

@@ -82,6 +82,12 @@ namespace Crafter {
     // dependency notes of the project crafter-build was pointed at are
     // gathered (Crafter.Build:Agents).
     std::vector<Configuration*> PragmaDependencies(const fs::path& projectFile);
+    // True while this thread loads a `#pragma crafter dependency`: the tool's
+    // project file and every sibling it loads in turn. GitProject and
+    // LocalProject key the project cache on it, so host tooling, which
+    // ForceHostTooling rewrites in place, never shares a Configuration with a
+    // load for the target.
+    bool LoadingHostTooling();
     // Resolves the directory holding distributed runtime assets (Crafter.Build
     // module sources, wasi-runtime/, etc). Honors CRAFTER_BUILD_HOME; otherwise
     // derives <prefix>/share/crafter-build from the running executable's path.