feat: add feedback button linking to GitHub Issues with prefilled template

Adds a bilingual (DE/EN) feedback link in the footer that opens a new
GitHub Issue with prefilled title and body template. Bumps version to 1.5.1.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: rdmueller

src/components/RiskRadar.jsx

@@ -129,7 +129,7 @@ export default function RiskRadar() {
         </div>
 
         <div className={styles.footer}>
-          <div>v{VERSION} · <a href="https://github.com/LLM-Coding/vibe-coding-risk-radar" target="_blank" rel="noopener" className={styles.footerLink}>{t.footer.github}</a> · <a href={`docs/risk-radar${lang === "en" ? "-en" : ""}.html`} target="_blank" rel="noopener" className={styles.footerLink}>{t.footer.fullDocs}</a></div>
+          <div>v{VERSION} · <a href="https://github.com/LLM-Coding/vibe-coding-risk-radar" target="_blank" rel="noopener" className={styles.footerLink}>{t.footer.github}</a> · <a href={`docs/risk-radar${lang === "en" ? "-en" : ""}.html`} target="_blank" rel="noopener" className={styles.footerLink}>{t.footer.fullDocs}</a> · <a href={`https://github.com/LLM-Coding/vibe-coding-risk-radar/issues/new?title=${encodeURIComponent(t.footer.feedbackTitle)}&body=${encodeURIComponent(t.footer.feedbackBody)}`} target="_blank" rel="noopener" className={styles.footerLink}>{t.footer.feedback}</a></div>
           <div>{t.footer.madeBy} <a href="https://www.linkedin.com/in/rdmueller" target="_blank" rel="noopener" className={styles.footerLink}>Ralf D. Müller</a></div>
         </div>
       </div>

src/constants.js

@@ -1,4 +1,4 @@
-export const VERSION = "1.5.0";
+export const VERSION = "1.5.1";
 
 export const TIER_BG = ["#10b981", "#f59e0b", "#f97316", "#ef4444"];
 

src/i18n.js

@@ -105,6 +105,9 @@ const T = {
     footer: {
       github: "GitHub",
       fullDocs: "Ausführliche Dokumentation",
+      feedback: "Feedback",
+      feedbackTitle: "Feedback: Risiko-Kategorien",
+      feedbackBody: `## Bereich\n<!-- Welche Kategorie/Dimension/Tier betrifft Ihr Feedback? -->\n\n## Feedback\n<!-- Beschreiben Sie Ihren Vorschlag oder Ihre Beobachtung -->\n\n## Kontext (optional)\n<!-- Aus welcher Branche/Rolle kommen Sie? Hilft uns bei der Einordnung. -->`,
       madeBy: "Erstellt von",
     },
     docs: {
@@ -293,6 +296,9 @@ Dieses Framework bietet eine https://github.com/LLM-Coding/Semantic-Anchors?tab=
     footer: {
       github: "GitHub",
       fullDocs: "Full Documentation",
+      feedback: "Feedback",
+      feedbackTitle: "Feedback: Risk Categories",
+      feedbackBody: `## Area\n<!-- Which category/dimension/tier does your feedback concern? -->\n\n## Feedback\n<!-- Describe your suggestion or observation -->\n\n## Context (optional)\n<!-- What industry/role are you from? Helps us prioritize. -->`,
       madeBy: "Created by",
     },
     docs: {