chore: bump version to 0.5.2

- Fix pin icons in ConversationItem to use bookmark style matching TopNav
- Make pin() and archive() methods async with IndexedDB persistence
- Use optimistic updates with rollback on failure
- Queue changes for backend sync via markForSync()

README.md

@@ -41,20 +41,35 @@ If you want a **small, focused UI for local Ollama usage** → Vessel is built f
 ## Features
 
 ### Chat
-- Real-time streaming responses
-- Message editing with branch navigation
+- Real-time streaming responses with token metrics
+- **Message branching** — edit any message to create alternative conversation paths
 - Markdown rendering with syntax highlighting
+- **Thinking mode** — native support for reasoning models (DeepSeek-R1, etc.)
 - Dark/Light themes
 
+### Projects & Organization
+- **Projects** — group related conversations together
+- Pin and archive conversations
+- Smart title generation from conversation content
+- **Global search** — semantic, title, and content search across all chats
+
+### Knowledge Base (RAG)
+- Upload documents (text, markdown, PDF) to build a knowledge base
+- **Semantic search** using embeddings for context-aware retrieval
+- Project-specific or global knowledge bases
+- Automatic context injection into conversations
+
 ### Tools
 - **5 built-in tools**: web search, URL fetching, calculator, location, time
 - **Custom tools**: Create your own in JavaScript, Python, or HTTP
+- Agentic tool calling with chain-of-thought reasoning
 - Test tools before saving with the built-in testing panel
 
 ### Models
 - Browse and pull models from ollama.com
 - Create custom models with embedded system prompts
-- Track model updates
+- **Per-model parameters** — customize temperature, context size, top_k/top_p
+- Track model updates and capability detection (vision, tools, code)
 
 ### Prompts
 - Save and organize system prompts
@@ -145,6 +160,9 @@ Full documentation is available on the **[GitHub Wiki](https://github.com/Viking
 | Guide | Description |
 |-------|-------------|
 | [Getting Started](https://github.com/VikingOwl91/vessel/wiki/Getting-Started) | Installation and configuration |
+| [Projects](https://github.com/VikingOwl91/vessel/wiki/Projects) | Organize conversations into projects |
+| [Knowledge Base](https://github.com/VikingOwl91/vessel/wiki/Knowledge-Base) | RAG with document upload and semantic search |
+| [Search](https://github.com/VikingOwl91/vessel/wiki/Search) | Semantic and content search across chats |
 | [Custom Tools](https://github.com/VikingOwl91/vessel/wiki/Custom-Tools) | Create JavaScript, Python, or HTTP tools |
 | [System Prompts](https://github.com/VikingOwl91/vessel/wiki/System-Prompts) | Manage prompts with model defaults |
 | [Custom Models](https://github.com/VikingOwl91/vessel/wiki/Custom-Models) | Create models with embedded prompts |
@@ -164,6 +182,11 @@ Vessel prioritizes **usability and simplicity** over feature breadth.
 - [x] Custom tools (JavaScript, Python, HTTP)
 - [x] System prompt library with model-specific defaults
 - [x] Custom model creation with embedded prompts
+- [x] Projects for conversation organization
+- [x] Knowledge base with RAG (semantic retrieval)
+- [x] Global search (semantic, title, content)
+- [x] Thinking mode for reasoning models
+- [x] Message branching and conversation trees
 
 **Planned:**
 - [ ] Keyboard-first workflows

backend/cmd/server/main.go

@@ -18,7 +18,7 @@ import (
 )
 
 // Version is set at build time via -ldflags, or defaults to dev
-var Version = "0.5.1"
+var Version = "0.5.2"
 
 func getEnvOrDefault(key, defaultValue string) string {
 	if value := os.Getenv(key); value != "" {

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vessel",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "private": true,
   "type": "module",
   "scripts": {

frontend/src/lib/components/layout/ConversationItem.svelte

@@ -98,14 +98,18 @@
 	<!-- Chat icon -->
 	<div class="mt-0.5 shrink-0">
 		{#if conversation.isPinned}
-			<!-- Pin icon for pinned conversations -->
+			<!-- Bookmark icon for pinned conversations -->
 			<svg
 				xmlns="http://www.w3.org/2000/svg"
 				class="h-4 w-4 text-emerald-500"
-				viewBox="0 0 20 20"
+				viewBox="0 0 24 24"
 				fill="currentColor"
 			>
-				<path d="M10.75 4.75a.75.75 0 0 0-1.5 0v4.5h-4.5a.75.75 0 0 0 0 1.5h4.5v4.5a.75.75 0 0 0 1.5 0v-4.5h4.5a.75.75 0 0 0 0-1.5h-4.5v-4.5Z" />
+				<path
+					fill-rule="evenodd"
+					d="M6.32 2.577a49.255 49.255 0 0 1 11.36 0c1.497.174 2.57 1.46 2.57 2.93V21a.75.75 0 0 1-1.085.67L12 18.089l-7.165 3.583A.75.75 0 0 1 3.75 21V5.507c0-1.47 1.073-2.756 2.57-2.93Z"
+					clip-rule="evenodd"
+				/>
 			</svg>
 		{:else}
 			<!-- Regular chat bubble -->
@@ -147,49 +151,36 @@
 	</div>
 
 	<!-- Action buttons (always visible on mobile, hover on desktop) -->
-	<div class="absolute right-2 top-1/2 flex -translate-y-1/2 items-center gap-1 transition-opacity {uiState.isMobile ? 'opacity-100' : 'opacity-0 group-hover:opacity-100'}">
+	<div class="absolute right-2 top-1/2 flex -translate-y-1/2 items-center gap-0.5 rounded-md bg-theme-secondary/90 px-1 py-0.5 shadow-sm transition-opacity {uiState.isMobile ? 'opacity-100' : 'opacity-0 group-hover:opacity-100'}">
 		<!-- Pin/Unpin button -->
 		<button
 			type="button"
 			onclick={handlePin}
-			class="rounded p-1 text-theme-muted transition-colors hover:bg-theme-tertiary hover:text-theme-primary"
+			class="rounded p-1 transition-colors hover:bg-theme-tertiary {conversation.isPinned ? 'text-emerald-500 hover:text-emerald-400' : 'text-theme-secondary hover:text-theme-primary'}"
 			aria-label={conversation.isPinned ? 'Unpin conversation' : 'Pin conversation'}
 			title={conversation.isPinned ? 'Unpin' : 'Pin'}
 		>
-			{#if conversation.isPinned}
-				<!-- Unpin icon (filled) -->
-				<svg
-					xmlns="http://www.w3.org/2000/svg"
-					class="h-4 w-4"
-					viewBox="0 0 20 20"
-					fill="currentColor"
-				>
-					<path d="M8.75 10.25a.75.75 0 0 0 0 1.5h2.5a.75.75 0 0 0 0-1.5h-2.5Z" />
-				</svg>
-			{:else}
-				<!-- Pin icon (outline) -->
-				<svg
-					xmlns="http://www.w3.org/2000/svg"
-					class="h-4 w-4"
-					fill="none"
-					viewBox="0 0 24 24"
-					stroke="currentColor"
-					stroke-width="2"
-				>
-					<path
-						stroke-linecap="round"
-						stroke-linejoin="round"
-						d="M3 6.75A.75.75 0 0 1 3.75 6h16.5a.75.75 0 0 1 0 1.5H3.75A.75.75 0 0 1 3 6.75ZM3 12a.75.75 0 0 1 .75-.75h16.5a.75.75 0 0 1 0 1.5H3.75A.75.75 0 0 1 3 12Zm0 5.25a.75.75 0 0 1 .75-.75h16.5a.75.75 0 0 1 0 1.5H3.75a.75.75 0 0 1-.75-.75Z"
-					/>
-				</svg>
-			{/if}
+			<svg
+				xmlns="http://www.w3.org/2000/svg"
+				class="h-4 w-4"
+				fill={conversation.isPinned ? 'currentColor' : 'none'}
+				viewBox="0 0 24 24"
+				stroke="currentColor"
+				stroke-width="1.5"
+			>
+				<path
+					stroke-linecap="round"
+					stroke-linejoin="round"
+					d="M17.593 3.322c1.1.128 1.907 1.077 1.907 2.185V21L12 17.25 4.5 21V5.507c0-1.108.806-2.057 1.907-2.185a48.507 48.507 0 0 1 11.186 0Z"
+				/>
+			</svg>
 		</button>
 
 		<!-- Move to project button -->
 		<button
 			type="button"
 			onclick={handleMove}
-			class="rounded p-1 text-theme-muted transition-colors hover:bg-theme-tertiary hover:text-theme-primary"
+			class="rounded p-1 text-theme-secondary transition-colors hover:bg-theme-tertiary hover:text-theme-primary"
 			aria-label="Move to project"
 			title="Move to project"
 		>
@@ -213,7 +204,7 @@
 		<button
 			type="button"
 			onclick={handleExport}
-			class="rounded p-1 text-theme-muted transition-colors hover:bg-theme-tertiary hover:text-theme-primary"
+			class="rounded p-1 text-theme-secondary transition-colors hover:bg-theme-tertiary hover:text-theme-primary"
 			aria-label="Export conversation"
 			title="Export"
 		>
@@ -237,7 +228,7 @@
 		<button
 			type="button"
 			onclick={handleDelete}
-			class="rounded p-1 text-theme-muted transition-colors hover:bg-red-900/50 hover:text-red-400"
+			class="rounded p-1 text-theme-secondary transition-colors hover:bg-red-900/50 hover:text-red-400"
 			aria-label="Delete conversation"
 			title="Delete"
 		>

frontend/src/lib/components/layout/ProjectFolder.svelte

@@ -98,7 +98,7 @@
 		<button
 			type="button"
 			onclick={handleSettings}
-			class="shrink-0 rounded p-0.5 text-theme-muted opacity-0 transition-opacity hover:bg-theme-tertiary hover:text-theme-primary group-hover:opacity-100"
+			class="shrink-0 rounded p-1 text-theme-secondary opacity-0 transition-opacity hover:bg-theme-tertiary hover:text-theme-primary group-hover:opacity-100"
 			aria-label="Project settings"
 			title="Settings"
 		>

frontend/src/lib/stores/conversations.svelte.ts

@@ -4,6 +4,7 @@
  */
 
 import type { Conversation } from '$lib/types/conversation.js';
+import { pinConversation, archiveConversation } from '$lib/storage/conversations.js';
 
 /** Date group labels */
 type DateGroup = 'Today' | 'Yesterday' | 'Previous 7 Days' | 'Previous 30 Days' | 'Older';
@@ -161,23 +162,43 @@ export class ConversationsState {
 
 	/**
 	 * Toggle pin status of a conversation
+	 * Persists to IndexedDB and queues for backend sync
 	 * @param id The conversation ID
 	 */
-	pin(id: string): void {
+	async pin(id: string): Promise<void> {
 		const conversation = this.items.find((c) => c.id === id);
 		if (conversation) {
+			// Update in-memory state immediately for responsive UI
 			this.update(id, { isPinned: !conversation.isPinned });
+
+			// Persist to IndexedDB and queue for sync
+			const result = await pinConversation(id);
+			if (!result.success) {
+				// Revert on failure
+				this.update(id, { isPinned: conversation.isPinned });
+				console.error('Failed to persist pin state:', result.error);
+			}
 		}
 	}
 
 	/**
 	 * Toggle archive status of a conversation
+	 * Persists to IndexedDB and queues for backend sync
 	 * @param id The conversation ID
 	 */
-	archive(id: string): void {
+	async archive(id: string): Promise<void> {
 		const conversation = this.items.find((c) => c.id === id);
 		if (conversation) {
+			// Update in-memory state immediately for responsive UI
 			this.update(id, { isArchived: !conversation.isArchived });
+
+			// Persist to IndexedDB and queue for sync
+			const result = await archiveConversation(id);
+			if (!result.success) {
+				// Revert on failure
+				this.update(id, { isArchived: conversation.isArchived });
+				console.error('Failed to persist archive state:', result.error);
+			}
 		}
 	}