Add DAST, graph modules, toast notifications, and dashboard enhancements

Add DAST scanning and code knowledge graph features across the stack:
- compliance-dast and compliance-graph workspace crates
- Agent API handlers and routes for DAST targets/scans and graph builds
- Core models and traits for DAST and graph domains
- Dashboard pages for DAST targets/findings/overview and graph explorer/impact
- Toast notification system with auto-dismiss for async action feedback
- Button click animations and disabled states for better UX

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

compliance-dashboard/src/infrastructure/graph.rs

@@ -0,0 +1,96 @@
+use dioxus::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct GraphDataResponse {
+    pub data: GraphData,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct GraphData {
+    pub build: Option<serde_json::Value>,
+    pub nodes: Vec<serde_json::Value>,
+    pub edges: Vec<serde_json::Value>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct ImpactResponse {
+    pub data: Option<serde_json::Value>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct CommunitiesResponse {
+    pub data: Vec<serde_json::Value>,
+    pub total: Option<u64>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct NodesResponse {
+    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 =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!("{}/api/v1/graph/{repo_id}", state.agent_api_url);
+    let resp = reqwest::get(&url)
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    let body: GraphDataResponse = resp
+        .json()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    Ok(body)
+}
+
+#[server]
+pub async fn fetch_impact(
+    repo_id: String,
+    finding_id: String,
+) -> Result<ImpactResponse, ServerFnError> {
+    let state: super::server_state::ServerState =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!(
+        "{}/api/v1/graph/{repo_id}/impact/{finding_id}",
+        state.agent_api_url
+    );
+    let resp = reqwest::get(&url)
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    let body: ImpactResponse = resp
+        .json()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    Ok(body)
+}
+
+#[server]
+pub async fn fetch_communities(repo_id: String) -> Result<CommunitiesResponse, ServerFnError> {
+    let state: super::server_state::ServerState =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!("{}/api/v1/graph/{repo_id}/communities", state.agent_api_url);
+    let resp = reqwest::get(&url)
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    let body: CommunitiesResponse = 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 =
+        dioxus_fullstack::FullstackContext::extract().await?;
+    let url = format!("{}/api/v1/graph/{repo_id}/build", state.agent_api_url);
+    let client = reqwest::Client::new();
+    client
+        .post(&url)
+        .send()
+        .await
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+    Ok(())
+}