Add graph explorer components, API handlers, and dependency updates

Adds code inspector, file tree components, graph visualization JS,
graph API handlers, sidebar navigation updates, and misc improvements.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

compliance-dashboard/src/infrastructure/graph.rs

@@ -30,6 +30,24 @@ pub struct NodesResponse {
     pub total: Option<u64>,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct FileContentResponse {
+    pub data: FileContentData,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct FileContentData {
+    pub content: String,
+    pub path: String,
+    pub language: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct SearchResponse {
+    pub data: Vec<serde_json::Value>,
+    pub total: Option<u64>,
+}
+
 #[server]
 pub async fn fetch_graph(repo_id: String) -> Result<GraphDataResponse, ServerFnError> {
     let state: super::server_state::ServerState =
@@ -81,6 +99,48 @@ pub async fn fetch_communities(repo_id: String) -> Result<CommunitiesResponse, S
     Ok(body)
 }
 
+#[server]
+pub async fn fetch_file_content(
+    repo_id: String,
+    file_path: String,
+) -> Result<FileContentResponse, ServerFnError> {
+    let state: super::server_state::ServerState =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!(
+        "{}/api/v1/graph/{repo_id}/file-content?path={file_path}",
+        state.agent_api_url
+    );
+    let resp = reqwest::get(&url)
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    let body: FileContentResponse = resp
+        .json()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    Ok(body)
+}
+
+#[server]
+pub async fn search_nodes(
+    repo_id: String,
+    query: String,
+) -> Result<SearchResponse, ServerFnError> {
+    let state: super::server_state::ServerState =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!(
+        "{}/api/v1/graph/{repo_id}/search?q={query}&limit=50",
+        state.agent_api_url
+    );
+    let resp = reqwest::get(&url)
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    let body: SearchResponse = resp
+        .json()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    Ok(body)
+}
+
 #[server]
 pub async fn trigger_graph_build(repo_id: String) -> Result<(), ServerFnError> {
     let state: super::server_state::ServerState =