Tighten Rm level validation

- Require the Rm level to stage or remove the tracked deleted file instead of treating the initial deleted worktree state as solved.
- Add a regression test proving read-only commands such as `ls` do not complete the Rm level.
- Verify the full JVM level solution suite with the compiled host Git runtime.

app/src/main/java/solutions/tretter/githugandroid/levels/RmLevel.kt

@@ -14,7 +14,10 @@ internal fun rmLevel(): Level = level(
     hints = emptyList(),
     commandSuggestions = listOf("git status", "git rm deleteme.rb"),
     setup = { RepoState(initialized = true, files = listOf(GitFile("deleteme.rb", tracked = true, deleted = true)), commits = listOf(CommitNode("0000001", "Added a temp file")), branches = mapOf("master" to 1)) },
-    validator = repoPredicate { repo -> repo.files.none { it.name == "deleteme.rb" && !it.deleted } || repo.files.any { it.name == "deleteme.rb" && it.deleted && it.staged } },
+    validator = repoPredicate { repo ->
+        repo.files.none { it.name == "deleteme.rb" } ||
+            repo.files.any { it.name == "deleteme.rb" && it.deleted && it.staged }
+    },
     testCases = listOf(
         levelTestCase("git rm deleted path", "git rm deleteme.rb"),
     ),