feat: add honest plugin inspection reporting

Shift the Rust parity increment away from implying TS-style plugin UX and toward an honest inspection surface. /plugin now reports current local plugin support, checked directories, and missing runtime wiring, while /reload-plugins rebuilds the runtime and prints the same inspection snapshot.\n\nConstraint: Rust only supports local manifest-backed plugins today; marketplace/discovery parity does not exist\nRejected: Stub marketplace installer flow | would overstate current capability\nRejected: Keep /plugin as list-only output | hides important gaps and checked paths\nConfidence: high\nScope-risk: narrow\nReversibility: clean\nDirective: Keep plugin reporting aligned with actual runtime wiring; do not advertise manifest commands/hooks as active until the runtime uses them\nTested: cargo test -p commands\nTested: cargo test -p claw-cli\nNot-tested: cargo clippy -p commands -p claw-cli --tests -- -D warnings (blocked by pre-existing workspace warnings in commands/claw-cli/lsp)

rust/crates/plugins/src/lib.rs

@@ -648,6 +648,17 @@ pub struct PluginSummary {
     pub enabled: bool,
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct PluginInspection {
+    pub install_root: PathBuf,
+    pub registry_path: PathBuf,
+    pub settings_path: PathBuf,
+    pub bundled_root: PathBuf,
+    pub external_dirs: Vec<PathBuf>,
+    pub discoverable_plugins: Vec<PluginSummary>,
+    pub installed_plugins: Vec<PluginSummary>,
+}
+
 #[derive(Debug, Clone, Default, PartialEq)]
 pub struct PluginRegistry {
     plugins: Vec<RegisteredPlugin>,
@@ -934,6 +945,31 @@ impl PluginManager {
         self.config.config_home.join(SETTINGS_FILE_NAME)
     }
 
+    #[must_use]
+    pub fn bundled_root_path(&self) -> PathBuf {
+        self.config
+            .bundled_root
+            .clone()
+            .unwrap_or_else(Self::bundled_root)
+    }
+
+    #[must_use]
+    pub fn external_dirs(&self) -> &[PathBuf] {
+        &self.config.external_dirs
+    }
+
+    pub fn inspect(&self) -> Result<PluginInspection, PluginError> {
+        Ok(PluginInspection {
+            install_root: self.install_root(),
+            registry_path: self.registry_path(),
+            settings_path: self.settings_path(),
+            bundled_root: self.bundled_root_path(),
+            external_dirs: self.external_dirs().to_vec(),
+            discoverable_plugins: self.list_plugins()?,
+            installed_plugins: self.list_installed_plugins()?,
+        })
+    }
+
     pub fn plugin_registry(&self) -> Result<PluginRegistry, PluginError> {
         Ok(PluginRegistry::new(
             self.discover_plugins()?