feat: UI improvements with icons, back navigation, and overview cards

- Move AI Chat and MCP Servers from sidebar to overview page as cards
- Remove Graph from sidebar (accessible from repositories page)
- Add back buttons to all drill-down pages (finding detail, graph, chat, etc.)
- Replace text labels with icons + tooltips on action buttons and status badges
- Improve spacing and margins across tables and cards

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

compliance-dashboard/src/pages/finding_detail.rs

@@ -1,4 +1,6 @@
 use dioxus::prelude::*;
+use dioxus_free_icons::icons::bs_icons::*;
+use dioxus_free_icons::Icon;
 
 use crate::components::code_snippet::CodeSnippet;
 use crate::components::page_header::PageHeader;
@@ -25,6 +27,15 @@ pub fn FindingDetailPage(id: String) -> Element {
             let finding_id_for_feedback = id.clone();
             let existing_feedback = f.developer_feedback.clone().unwrap_or_default();
             rsx! {
+                div { class: "back-nav",
+                    button {
+                        class: "btn btn-ghost btn-back",
+                        onclick: move |_| { navigator().go_back(); },
+                        Icon { icon: BsArrowLeft, width: 16, height: 16 }
+                        "Back"
+                    }
+                }
+
                 PageHeader {
                     title: f.title.clone(),
                     description: format!("{} | {} | {}", f.scanner, f.scan_type, f.status),
@@ -108,9 +119,18 @@ pub fn FindingDetailPage(id: String) -> Element {
                             {
                                 let status_str = status.to_string();
                                 let id_clone = finding_id_for_status.clone();
+                                let label = match status {
+                                    "open" => "Open",
+                                    "triaged" => "Triaged",
+                                    "resolved" => "Resolved",
+                                    "false_positive" => "False Positive",
+                                    "ignored" => "Ignored",
+                                    _ => status,
+                                };
                                 rsx! {
                                     button {
                                         class: "btn btn-ghost",
+                                        title: "{label}",
                                         onclick: move |_| {
                                             let s = status_str.clone();
                                             let id = id_clone.clone();
@@ -119,7 +139,15 @@ pub fn FindingDetailPage(id: String) -> Element {
                                             });
                                             finding.restart();
                                         },
-                                        "{status}"
+                                        match status {
+                                            "open" => rsx! { Icon { icon: BsCircle, width: 14, height: 14 } },
+                                            "triaged" => rsx! { Icon { icon: BsEye, width: 14, height: 14 } },
+                                            "resolved" => rsx! { Icon { icon: BsCheckCircle, width: 14, height: 14 } },
+                                            "false_positive" => rsx! { Icon { icon: BsXCircle, width: 14, height: 14 } },
+                                            "ignored" => rsx! { Icon { icon: BsDashCircle, width: 14, height: 14 } },
+                                            _ => rsx! {},
+                                        }
+                                        " {label}"
                                     }
                                 }
                             }