feat: update icon stroke color to currentColor and refine provideLinks tool usage

Author: DarkPhoenix2704

components/icons/Mcp.tsx

@@ -9,25 +9,25 @@ export default function Mcp(props: React.SVGProps<SVGSVGElement>) {
       <g clipPath="url(#clip0_7011_10333)">
         <path 
           d="M5.64617 9.44949L10.1972 4.89847C11.0069 4.08873 11.0069 2.77589 10.1972 1.96615C9.38745 1.15641 8.07461 1.15641 7.26487 1.96615L1.25 7.98102" 
-          stroke="#1F293A" 
+          stroke="currentColor" 
           strokeWidth="1.33" 
           strokeLinecap="round" 
         />
         <path 
           d="M7.58284 13.5992L10.1626 11.0195L13.1834 7.9987C14.0247 7.15741 14.0247 5.79342 13.1834 4.95213C12.3421 4.11085 10.9781 4.11085 10.1368 4.95213L5.61851 9.47043" 
-          stroke="#1F293A" 
+          stroke="currentColor" 
           strokeWidth="1.33" 
           strokeLinecap="round" 
         />
         <path 
           d="M8.45532 3.71483L7.15276 5.01739L4.10645 8.0637C3.27925 8.89089 3.27925 10.232 4.10645 11.0592C4.93364 11.8864 6.27478 11.8864 7.10198 11.0592L11.6458 6.51541" 
-          stroke="#1F293A" 
+          stroke="currentColor" 
           strokeWidth="1.33" 
           strokeLinecap="round" 
         />
         <path 
           d="M7.51895 14.0675L8.89563 15.5" 
-          stroke="#1F293A" 
+          stroke="currentColor" 
           strokeWidth="1.33" 
           strokeLinecap="round" 
         />

lib/searchPrompt.ts

@@ -17,7 +17,9 @@ export const systemPrompt = `You are NocoDB Assistant, an expert AI helper speci
 
 ### provideLinks Tool
 
-* **Always call this last** to provide citations for referenced sources.
+* **Call this at the end of your response when you've referenced specific documentation** to provide citations for those sources.
+* Only use when your response actually discusses NocoDB features, APIs, or implementation details.
+* Do not call for simple acknowledgments, greetings, or conversations that don't reference documentation.
 * Include all relevant documentation links.
 * Format: \`{ links: [{ url, title }] }\`
 * **Do not inline any links in your response.** All links must be provided through the provideLinks tool.
@@ -50,9 +52,11 @@ export const systemPrompt = `You are NocoDB Assistant, an expert AI helper speci
 ## Critical Rules
 
 * **NEVER stop after calling searchDocs.** Always synthesize a written answer.
+* **Only call provideLinks when you've actually referenced documentation** in your response.
 * Summarize retrieved markdown content clearly and only include relevant sections in the response.
 * **Do NOT inline links.** Provide documentation links via provideLinks tool at the end.
 * **Stay focused.** Only provide information that directly answers the user's question—avoid tangential details.
+* Do not call tools for simple conversational responses like "thanks," "hello," or clarifications.
 
 ## Example 1: Feature Question