Add a documentation-grounded help chat assistant accessible from every
page via a floating button in the bottom-right corner.

Backend (compliance-agent):
- New POST /api/v1/help/chat endpoint
- Loads README.md + docs/**/*.md at first request (OnceLock cache)
- Excludes node_modules, uses walkdir for discovery
- Falls back to degraded prompt if docs not found
- Uses LiteLLM via existing chat_with_messages infrastructure

Dashboard (compliance-dashboard):
- New HelpChat component with toggle button, message area, input
- Styled to match Obsidian Control theme (dark, accent cyan)
- Renders in AppShell so it's available on every page
- Multi-turn conversation with history
- Server function proxies to agent API

Also:
- Remove Settings page (route, sidebar entry, page file)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

@@ -0,0 +28,4 @@
+pub struct HelpChatResponse {
+    pub message: String,
+}
+

@@ -0,0 +32,4 @@
+// ── Doc cache ────────────────────────────────────────────────────────────────
+
+static DOC_CONTEXT: OnceLock<String> = OnceLock::new();
+

@@ -0,0 +49,4 @@
+
+/// Read README.md + all docs/**/*.md (excluding node_modules).
+fn load_docs(root: &Path) -> String {
+    let mut parts: Vec<String> = Vec::new();

@@ -0,0 +51,4 @@
+fn load_docs(root: &Path) -> String {
+    let mut parts: Vec<String> = Vec::new();
+
+    // Root README first

@@ -0,0 +53,4 @@
+
+    // Root README first
+    if let Ok(content) = std::fs::read_to_string(root.join("README.md")) {
+        parts.push(format!("<!-- file: README.md -->\n{content}"));

@@ -0,0 +64,4 @@
+            !e.path()
+                .components()
+                .any(|c| c.as_os_str() == "node_modules")
+        })

@@ -0,0 +66,4 @@
+                .any(|c| c.as_os_str() == "node_modules")
+        })
+        .filter_map(|e| e.ok())
+    {

@@ -0,0 +70,4 @@
+        let path = entry.path();
+        if !path.is_file() {
+            continue;
+        }

@@ -0,0 +76,4 @@
+            .and_then(|s| s.to_str())
+            .map(|s| !s.eq_ignore_ascii_case("md"))
+            .unwrap_or(true)
+        {

@@ -0,0 +137,4 @@
+pub async fn help_chat(
+    Extension(agent): AgentExt,
+    Json(req): Json<HelpChatRequest>,
+) -> Result<Json<ApiResponse<HelpChatResponse>>, StatusCode> {

@@ -0,0 +155,4 @@
+             - Quote or reference the relevant doc section when it helps\n\
+             - If the docs do not cover the topic, say so clearly\n\
+             - Be concise — lead with the answer, then explain if needed\n\
+             - Use markdown formatting for readability\n\n\

@@ -0,0 +171,4 @@
+    let response_text = agent
+        .llm
+        .chat_with_messages(messages, Some(0.3))
+        .await

@@ -3645,3 +3645,205 @@ tbody tr:last-child td {
 .wizard-toggle.active .wizard-toggle-knob {
     transform: translateX(16px);
 }
+

@@ -46,4 +46,2 @@
         McpServersPage {},
-        #[route("/settings")]
-        SettingsPage {},
 }

@@ -21,6 +22,7 @@ pub fn AppShell() -> Element {
                         Outlet::<Route> {}
                     }
                     ToastContainer {}
+                    HelpChat {}

@@ -0,0 +27,4 @@
+        if text.is_empty() || is_loading() {
+            return;
+        }
+

@@ -0,0 +32,4 @@
+        messages.write().push(ChatMsg {
+            role: "user".into(),
+            content: text.clone(),
+        });

@@ -0,0 +42,4 @@
+            .rev()
+            .skip(1) // skip the user message we just added
+            .rev()
+            .map(|m| HelpChatHistoryMessage {

@@ -0,0 +50,4 @@
+
+        spawn(async move {
+            match send_help_chat_message(text, history).await {
+                Ok(resp) => {

@@ -0,0 +60,4 @@
+                    messages.write().push(ChatMsg {
+                        role: "assistant".into(),
+                        content: format!("Error: {e}"),
+                    });

@@ -0,0 +64,4 @@
+                }
+            }
+            is_loading.set(false);
+        });

@@ -0,0 +117,4 @@
+        // Floating toggle button
+        if !is_open() {
+            button {
+                class: "help-chat-toggle",

@@ -0,0 +139,4 @@
+                        Icon { icon: BsX, width: 18, height: 18 }
+                    }
+                }
+

@@ -0,0 +149,4 @@
+                                "e.g. \"How do I add a repository?\" or \"What is SBOM?\""
+                            }
+                        }
+                    }

@@ -0,0 +150,4 @@
+                            }
+                        }
+                    }
+                    for (i, msg) in messages().iter().enumerate() {

@@ -0,0 +17,4 @@
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HelpChatHistoryMessage {
+    pub role: String,

@@ -0,0 +19,4 @@
+pub struct HelpChatHistoryMessage {
+    pub role: String,
+    pub content: String,
+}

@@ -0,0 +22,4 @@
+}
+
+// ── Server function ──
+

@@ -0,0 +23,4 @@
+
+// ── Server function ──
+
+#[server]

@@ -0,0 +27,4 @@
+pub async fn send_help_chat_message(
+    message: String,
+    history: Vec<HelpChatHistoryMessage>,
+) -> Result<HelpChatApiResponse, ServerFnError> {

@@ -0,0 +41,4 @@
+        .post(&url)
+        .json(&serde_json::json!({
+            "message": message,
+            "history": history,

@@ -151,20 +163,35 @@ The agent exposes a REST API on port 3001:
 | `GET` | `/api/v1/sbom` | List dependencies |
 | `GET` | `/api/v1/issues` | List cross-tracker issues |
 | `GET` | `/api/v1/scan-runs` | Scan execution history |
+| `GET` | `/api/v1/graph/:repo_id` | Code knowledge graph |

@@ -154,0 +169,4 @@
+| `POST` | `/api/v1/dast/targets` | Add DAST target |
+| `GET` | `/api/v1/dast/findings` | List DAST findings |
+| `POST` | `/api/v1/chat/:repo_id` | RAG-powered code chat |
+| `POST` | `/api/v1/help/chat` | Documentation-grounded help chat |

@@ -0,0 +28,4 @@
+pub struct HelpChatResponse {
+    pub message: String,
+}
+

@@ -0,0 +32,4 @@
+// ── Doc cache ────────────────────────────────────────────────────────────────
+
+static DOC_CONTEXT: OnceLock<String> = OnceLock::new();
+

@@ -0,0 +49,4 @@
+
+/// Read README.md + all docs/**/*.md (excluding node_modules).
+fn load_docs(root: &Path) -> String {
+    let mut parts: Vec<String> = Vec::new();

@@ -0,0 +51,4 @@
+fn load_docs(root: &Path) -> String {
+    let mut parts: Vec<String> = Vec::new();
+
+    // Root README first

@@ -0,0 +53,4 @@
+
+    // Root README first
+    if let Ok(content) = std::fs::read_to_string(root.join("README.md")) {
+        parts.push(format!("<!-- file: README.md -->\n{content}"));

@@ -0,0 +64,4 @@
+            !e.path()
+                .components()
+                .any(|c| c.as_os_str() == "node_modules")
+        })

@@ -0,0 +66,4 @@
+                .any(|c| c.as_os_str() == "node_modules")
+        })
+        .filter_map(|e| e.ok())
+    {

@@ -0,0 +70,4 @@
+        let path = entry.path();
+        if !path.is_file() {
+            continue;
+        }

@@ -0,0 +76,4 @@
+            .and_then(|s| s.to_str())
+            .map(|s| !s.eq_ignore_ascii_case("md"))
+            .unwrap_or(true)
+        {

@@ -0,0 +137,4 @@
+pub async fn help_chat(
+    Extension(agent): AgentExt,
+    Json(req): Json<HelpChatRequest>,
+) -> Result<Json<ApiResponse<HelpChatResponse>>, StatusCode> {

@@ -0,0 +155,4 @@
+             - Quote or reference the relevant doc section when it helps\n\
+             - If the docs do not cover the topic, say so clearly\n\
+             - Be concise — lead with the answer, then explain if needed\n\
+             - Use markdown formatting for readability\n\n\

@@ -0,0 +171,4 @@
+    let response_text = agent
+        .llm
+        .chat_with_messages(messages, Some(0.3))
+        .await

@@ -3645,3 +3645,205 @@ tbody tr:last-child td {
 .wizard-toggle.active .wizard-toggle-knob {
     transform: translateX(16px);
 }
+

@@ -46,4 +46,2 @@
         McpServersPage {},
-        #[route("/settings")]
-        SettingsPage {},
 }

@@ -21,6 +22,7 @@ pub fn AppShell() -> Element {
                         Outlet::<Route> {}
                     }
                     ToastContainer {}
+                    HelpChat {}

@@ -0,0 +27,4 @@
+        if text.is_empty() || is_loading() {
+            return;
+        }
+

@@ -0,0 +32,4 @@
+        messages.write().push(ChatMsg {
+            role: "user".into(),
+            content: text.clone(),
+        });

@@ -0,0 +42,4 @@
+            .rev()
+            .skip(1) // skip the user message we just added
+            .rev()
+            .map(|m| HelpChatHistoryMessage {

@@ -0,0 +50,4 @@
+
+        spawn(async move {
+            match send_help_chat_message(text, history).await {
+                Ok(resp) => {

@@ -0,0 +60,4 @@
+                    messages.write().push(ChatMsg {
+                        role: "assistant".into(),
+                        content: format!("Error: {e}"),
+                    });

@@ -0,0 +64,4 @@
+                }
+            }
+            is_loading.set(false);
+        });

@@ -0,0 +117,4 @@
+        // Floating toggle button
+        if !is_open() {
+            button {
+                class: "help-chat-toggle",

@@ -0,0 +139,4 @@
+                        Icon { icon: BsX, width: 18, height: 18 }
+                    }
+                }
+

@@ -0,0 +149,4 @@
+                                "e.g. \"How do I add a repository?\" or \"What is SBOM?\""
+                            }
+                        }
+                    }

@@ -0,0 +150,4 @@
+                            }
+                        }
+                    }
+                    for (i, msg) in messages().iter().enumerate() {

@@ -0,0 +17,4 @@
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HelpChatHistoryMessage {
+    pub role: String,

@@ -0,0 +19,4 @@
+pub struct HelpChatHistoryMessage {
+    pub role: String,
+    pub content: String,
+}

@@ -0,0 +22,4 @@
+}
+
+// ── Server function ──
+

@@ -0,0 +23,4 @@
+
+// ── Server function ──
+
+#[server]

@@ -0,0 +27,4 @@
+pub async fn send_help_chat_message(
+    message: String,
+    history: Vec<HelpChatHistoryMessage>,
+) -> Result<HelpChatApiResponse, ServerFnError> {

@@ -0,0 +41,4 @@
+        .post(&url)
+        .json(&serde_json::json!({
+            "message": message,
+            "history": history,

@@ -0,0 +1,61 @@
+# Finding Deduplication

@@ -0,0 +25,4 @@
+
+### API Endpoint
+
+```

@@ -0,0 +36,4 @@
+    { "role": "assistant", "content": "previous answer" }
+  ]
+}
+```

@@ -0,0 +39,4 @@
+```
+
+### Configuration
+

@@ -3,3 +3,1 @@
-The Overview page is the landing page of Certifai. It gives you a high-level view of your security posture across all tracked repositories.
-
-![Dashboard overview with stats cards, severity distribution, AI chat, and MCP servers](/screenshots/dashboard-overview.png)
+The Overview page is the landing page of the Compliance Scanner. It gives you a high-level view of your security posture across all tracked repositories.