fix(workspace): docs discovery for doc/ dirs + SSH terminal tab args

- Add doc/ alongside docs/ in markdown file discovery (groups.rs)
- Add SETUP.md to priority root files
- Fix SSH terminal tabs: resolve session args via sshArgsCache derived
  from listSshSessions() instead of passing empty args
- Fix Agent Preview: only mount xterm when tab is active (prevents
  CanvasAddon crash on hidden elements)
- Separate tab type rendering (shell/ssh/agent-preview) with proper guards

v2/src-tauri/src/groups.rs

@@ -83,7 +83,7 @@ pub fn discover_markdown_files(cwd: &str) -> Result<Vec<MdFileEntry>, String> {
     let mut entries = Vec::new();
 
     // Priority files at root
-    for name in &["CLAUDE.md", "README.md", "CHANGELOG.md", "TODO.md"] {
+    for name in &["CLAUDE.md", "README.md", "CHANGELOG.md", "TODO.md", "SETUP.md"] {
         let path = root.join(name);
         if path.is_file() {
             entries.push(MdFileEntry {
@@ -94,11 +94,13 @@ pub fn discover_markdown_files(cwd: &str) -> Result<Vec<MdFileEntry>, String> {
         }
     }
 
-    // docs/ directory (max 20 entries, depth 2)
+    // docs/ or doc/ directory (max 20 entries, depth 2)
-    let docs_dir = root.join("docs");
+    for dir_name in &["docs", "doc"] {
+        let docs_dir = root.join(dir_name);
         if docs_dir.is_dir() {
             scan_md_dir(&docs_dir, &mut entries, 2, 20);
         }
+    }
 
     Ok(entries)
 }
@@ -222,4 +224,26 @@ mod tests {
         assert_eq!(result.len(), 2);
         assert!(result.iter().all(|e| !e.priority));
     }
+
+    #[test]
+    fn test_discover_finds_doc_dir() {
+        let dir = tempfile::tempdir().unwrap();
+        let doc = dir.path().join("doc");
+        std::fs::create_dir(&doc).unwrap();
+        std::fs::write(doc.join("requirements.md"), "# Req").unwrap();
+        let result = discover_markdown_files(dir.path().to_str().unwrap()).unwrap();
+        assert_eq!(result.len(), 1);
+        assert_eq!(result[0].name, "requirements.md");
+        assert!(!result[0].priority);
+    }
+
+    #[test]
+    fn test_discover_finds_setup_md() {
+        let dir = tempfile::tempdir().unwrap();
+        std::fs::write(dir.path().join("SETUP.md"), "# Setup").unwrap();
+        let result = discover_markdown_files(dir.path().to_str().unwrap()).unwrap();
+        assert_eq!(result.len(), 1);
+        assert_eq!(result[0].name, "SETUP.md");
+        assert!(result[0].priority);
+    }
 }

v2/src/lib/components/Workspace/TerminalTabs.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+  import { onMount } from 'svelte';
   import type { ProjectConfig } from '../../types/groups';
   import {
     getTerminalTabs,
@@ -6,9 +7,33 @@
     removeTerminalTab,
     type TerminalTab,
   } from '../../stores/workspace.svelte';
+  import { listSshSessions, type SshSession } from '../../adapters/ssh-bridge';
   import TerminalPane from '../Terminal/TerminalPane.svelte';
   import AgentPreviewPane from '../Terminal/AgentPreviewPane.svelte';
 
+  /** Cached SSH sessions for building args */
+  let sshSessions = $state<SshSession[]>([]);
+
+  onMount(() => {
+    listSshSessions().then(s => { sshSessions = s; }).catch(() => {});
+  });
+
+  /** Resolved SSH args per tab, keyed by tab id */
+  let sshArgsCache = $derived.by(() => {
+    const cache: Record<string, string[]> = {};
+    for (const tab of tabs) {
+      if (tab.type !== 'ssh' || !tab.sshSessionId) continue;
+      const session = sshSessions.find(s => s.id === tab.sshSessionId);
+      if (!session) continue;
+      const args: string[] = [];
+      if (session.key_file) args.push('-i', session.key_file);
+      if (session.port && session.port !== 22) args.push('-p', String(session.port));
+      args.push(`${session.username}@${session.host}`);
+      cache[tab.id] = args;
+    }
+    return cache;
+  });
+
   interface Props {
     project: ProjectConfig;
     agentSessionId?: string | null;
@@ -100,17 +125,23 @@
 
   <div class="tab-content">
     {#each tabs as tab (tab.id)}
-      <div class="tab-pane" class:visible={activeTabId === tab.id}>
+      <div class="tab-pane" style:display={activeTabId === tab.id ? 'block' : 'none'}>
-        {#if activeTabId === tab.id}
         {#if tab.type === 'agent-preview' && tab.agentSessionId}
+          {#if activeTabId === tab.id}
             <AgentPreviewPane sessionId={tab.agentSessionId} />
-          {:else}
+          {/if}
+        {:else if tab.type === 'ssh' && sshArgsCache[tab.id]}
+          <TerminalPane
+            cwd={project.cwd}
+            shell="/usr/bin/ssh"
+            args={sshArgsCache[tab.id]}
+            onExit={() => handleTabExit(tab.id)}
+          />
+        {:else if tab.type === 'shell'}
           <TerminalPane
             cwd={project.cwd}
-              shell={tab.type === 'ssh' ? '/usr/bin/ssh' : undefined}
             onExit={() => handleTabExit(tab.id)}
           />
-          {/if}
         {/if}
       </div>
     {/each}
@@ -217,11 +248,6 @@
   .tab-pane {
     position: absolute;
     inset: 0;
-    display: none;
-  }
-
-  .tab-pane.visible {
-    display: block;
   }
 
   .empty-terminals {