ui: Agentic Content UX improvements (#25450)

* feat: Add shimmer text animation for processing state indicators

* feat: Redesign CollapsibleContentBlock component with improved UX

* feat: Add conditional setting display support with dependsOn field

* feat: Add showAgenticTurnStats setting for per-turn statistics

* feat: Update ChatMessageAgenticContent with improved UI and new features

* feat: Enhance file read tool UI/UX

* feat: Refine styling of collapsible content and code preview blocks

* feat: add terminal variant to CollapsibleContentBlock

* feat: add built-in tools UI registry

* feat: extract ChatMessageReasoningBlock and ChatMessageToolCallBlock

* refactor: simplify ChatMessageAgenticContent to use extracted blocks

* fix: correct markdown content block margin spacing

* fix: reorganize SettingsChatFields layout and reset button positioning

* fix: use direct map access in agentic store session methods

* refactor: remove reasoning preview/throttle system from CollapsibleContentBlock

* feat: add auto-scroll to reasoning block and remove showThoughtInProgress

* feat: add ChatMessageToolCallDateTime component and support for new tool types

* feat: improve auto-scroll reliability in reasoning block with RAF coalescing and MutationObserver

* feat: show MCP server favicon for tools without a built-in icon

* feat: add search-results parsing utilities and tests

* feat: add ChatMessageToolCallSearchResults component

* feat: integrate search results rendering into ChatMessageAgenticContent

* feat: display tool call input alongside output in ChatMessageToolCallBlock

* style: use muted foreground color in reasoning block content

* chore: Format

* feat: Refine reasoning block layout and make pending thoughts display configurable

* feat: Stream tool call code blocks with auto-scroll and handle partial JSON

* feat: add streaming permission gate infrastructure

* feat: wire permission gate into the agentic loop

* fix: bail out on abort and skip already-approved tool calls

* fix: clear partial tool calls on abort and savePartialResponse

* test: cover partial tool call cleanup end-to-end

* refactor: Remove streaming permission gate logic

* fix: Correct autoscroll and streaming gates for tool calls and reasoning blocks

* refactor: Chat Message Assistant componentization

* fix: Show health metadata for disabled MCP servers and promote connections on enable

* fix: Inherit global enabled state for missing MCP per-chat overrides

* refactor: Cleanup

* refactor: Split ChatMessageToolCallBlock into dedicated components

* feat: Add live streaming and auto-scroll for tool execution output

* feat: Add line numbers and change markers to file edit diffs

* chore: Formatting

* feat: Add type definitions and utilities for recommended MCP servers

* feat: Add recommended MCP servers configuration and storage key

* feat: Add McpServerCardCompact component for recommended servers

* feat: Add recommended servers section to Add New Server dialog

* feat: Update McpServerForm to support authorization requirements

* feat: Add select-none classes for text selection prevention

* feat: Add recommended MCP server icon assets

* refactor: Store dismissed MCP recommendations as a boolean flag

* feat: Render tool results as JSON or Markdown based on detected content type

* feat: UI improvement

* feat: Render search block early and update heading to show execution state

* fix: Prevent non-web-search tools from triggering the search UI block

* refactor: Cleanup

* refactor: Extract hardcoded icon size classes into shared constants

* refactor: Extract hardcoded tool result separator into a shared constant

* refactor: Tool Calls UI/logic

* refactor: Cleanup

* refactor: Cleanup

* refactor: Cleanup

tools/ui/src/lib/utils/url.ts

@@ -1,4 +1,8 @@
-import { TWO_PART_PUBLIC_SUFFIXES, WILDCARD_PUBLIC_SUFFIXES } from '$lib/constants';
+import {
+	TRAILING_SLASHES_REGEX,
+	TWO_PART_PUBLIC_SUFFIXES,
+	WILDCARD_PUBLIC_SUFFIXES
+} from '$lib/constants';
 import { UrlProtocol } from '$lib/enums';
 
 /**
@@ -70,3 +74,39 @@ export function sanitizeExternalUrl(raw: string): string | null {
 		return null;
 	}
 }
+
+/**
+ * Canonicalize a server URL for "is this the same server?" checks across
+ * the user's settings and the recommended-server list. Lowercases scheme
+ * and host, drops the port entirely, and strips any trailing slashes off
+ * the path so a stored `https://api.example.com:8443/mcp/` matches the
+ * recommended `https://api.example.com/mcp`. Falls back to a cheap
+ * trim+lowercase+strip pass when the input isn't a parseable URL.
+ *
+ * Query strings are preserved deliberately - if the user entered one,
+ * it's part of their endpoint. The port is always stripped because the
+ * underlying `URL` parser is asymmetric (it auto-drops HTTPS default
+ * :443 but keeps HTTP default :80), so a half-hearted "drop default
+ * ports" policy never matches consistently across schemes.
+ */
+export function canonicalizeServerUrl(raw: string): string {
+	const trimmed = raw.trim();
+
+	try {
+		const parsed = new URL(trimmed);
+		const pathname = parsed.pathname.replace(TRAILING_SLASHES_REGEX, '');
+
+		// Aggressive: drop the port unconditionally. We only use this for
+		// equality checks between user-typed URLs and a hard-coded list of
+		// recommendations, where the port can never carry distinguishing
+		// information we care about (a different port = a different server,
+		// but two URLs that differ only in `:80` vs no-port are clearly the
+		// same intent). Lowercasing the hostname matches HTTP/HTTPS
+		// case-insensitivity - the URL parser does NOT lowercase it.
+		const host = parsed.hostname.toLowerCase();
+
+		return `${parsed.protocol}//${host}${pathname}${parsed.search}`;
+	} catch {
+		return trimmed.toLowerCase().replace(TRAILING_SLASHES_REGEX, '');
+	}
+}