Feature/elm llama chat completions migration

README.md

@@ -5,7 +5,7 @@ VFB Chat is a Next.js chat interface for exploring Virtual Fly Brain (VFB) data
 ## What Changed
 
 - Native `web_search` has been removed from the model toolset.
-- Search is limited to approved `virtualflybrain.org` and `neurofly.org` pages plus reviewed `flybase.org` pages through server-side, domain-restricted tools.
+- Search is limited to approved `virtualflybrain.org`, `neurofly.org`, and `vfb-connect.readthedocs.io` pages plus reviewed `flybase.org` pages through server-side, domain-restricted tools.
 - Outbound links are sanitized server-side to approved domains only.
 - Raw IP-based security logs are retained for up to 30 days under `/logs/security`.
 - Aggregated analytics and structured feedback are retained under `/logs/analytics` and `/logs/feedback`.
@@ -36,7 +36,7 @@ The app now uses a 3-layer logging model rooted at `LOG_ROOT_DIR`:
 The reviewed documentation search path uses two server-side sources:
 
 - a seed index from `config/reviewed-docs-index.json`
-- a domain-restricted discovery path for approved `virtualflybrain.org` and `neurofly.org` pages using configured sitemap and robots sources
+- a domain-restricted discovery path for approved `virtualflybrain.org`, `neurofly.org`, and `vfb-connect.readthedocs.io` pages using configured sitemap and robots sources
 
 This keeps search scoped to approved domains while avoiding a hand-maintained list of every VFB news or documentation page.
 
@@ -52,13 +52,16 @@ Environment variable:
 
 Required for production:
 
-- `OPENAI_API_KEY`
-- `OPENAI_BASE_URL` or `APPROVED_ELM_BASE_URL`
-- `OPENAI_MODEL` or `APPROVED_ELM_MODEL`
+- `ELM_API_KEY` (or `OPENAI_API_KEY` as backward-compatible fallback)
+- `ELM_BASE_URL` (or `OPENAI_BASE_URL`) or `APPROVED_ELM_BASE_URL`
+- `ELM_MODEL` (or `OPENAI_MODEL`) or `APPROVED_ELM_MODEL`
 - `LOG_ROOT_DIR=/logs`
 
 Optional:
 
+- `OPENAI_API_KEY`
+- `OPENAI_BASE_URL`
+- `OPENAI_MODEL`
 - `APPROVED_ELM_BASE_URL`
 - `APPROVED_ELM_MODEL`
 - `RATE_LIMIT_PER_IP`
@@ -68,21 +71,21 @@ Optional:
 - `GA_MEASUREMENT_ID`
 - `GA_API_SECRET`
 
-When `APPROVED_ELM_BASE_URL` and/or `APPROVED_ELM_MODEL` are provided, production enforces that they exactly match the active `OPENAI_*` values. If they are omitted, the app uses the active gateway/model as the approved baseline so existing single-config deployments continue to work.
+When `APPROVED_ELM_BASE_URL` and/or `APPROVED_ELM_MODEL` are provided, production enforces that they exactly match the active configured gateway/model (resolved from `ELM_*` first, then `OPENAI_*`). If they are omitted, the app uses the active gateway/model as the approved baseline so existing single-config deployments continue to work.
 
 Default allow-lists:
 
-- Search allow-list: `virtualflybrain.org`, `*.virtualflybrain.org`, `flybase.org`, `neurofly.org`, `*.neurofly.org`
-- Outbound allow-list: `virtualflybrain.org`, `*.virtualflybrain.org`, `flybase.org`, `neurofly.org`, `*.neurofly.org`, `doi.org`, `pubmed.ncbi.nlm.nih.gov`, `biorxiv.org`, `medrxiv.org`
+- Search allow-list: `virtualflybrain.org`, `*.virtualflybrain.org`, `flybase.org`, `neurofly.org`, `*.neurofly.org`, `vfb-connect.readthedocs.io`
+- Outbound allow-list: `virtualflybrain.org`, `*.virtualflybrain.org`, `flybase.org`, `neurofly.org`, `*.neurofly.org`, `vfb-connect.readthedocs.io`, `doi.org`, `pubmed.ncbi.nlm.nih.gov`, `biorxiv.org`, `medrxiv.org`
 
 ## Local Development
 
 Create `.env.local` with explicit values:
 
 ```bash
-OPENAI_API_KEY=your-key-here
-OPENAI_BASE_URL=https://your-elm-gateway.example/v1
-OPENAI_MODEL=your-approved-model
+ELM_API_KEY=elm-xxxxxxxx-xxxxxxxxxxxxxxxx
+ELM_BASE_URL=https://elm.edina.ac.uk/api/v1
+ELM_MODEL=meta-llama/Llama-3.3-70B-Instruct
 LOG_ROOT_DIR=./logs
 ```
 

app/accessibility/page.js

@@ -0,0 +1,102 @@
+export const metadata = {
+  title: 'VFB Chat Accessibility Statement',
+  description: 'Accessibility statement for VFB Chat'
+}
+
+export default function AccessibilityPage() {
+  return (
+    <main style={{
+      minHeight: '100vh',
+      backgroundColor: '#000',
+      color: '#e0e0e0',
+      padding: '32px 20px 48px',
+      boxSizing: 'border-box'
+    }}>
+      <div style={{ maxWidth: '860px', margin: '0 auto' }}>
+        <h1 style={{ color: '#fff', marginTop: 0 }}>Accessibility Statement</h1>
+        <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+          This accessibility statement applies to VFB Chat (<a href="https://chat.virtualflybrain.org" style={{ color: '#66d9ff' }}>chat.virtualflybrain.org</a>).
+          This service is run by the Virtual Fly Brain project at the University of Edinburgh.
+        </p>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>Compliance Status</h2>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            We aim to make this website accessible in accordance with the Public Sector Bodies
+            (Websites and Mobile Applications) (No. 2) Accessibility Regulations 2018 and
+            the Web Content Accessibility Guidelines (WCAG) 2.2 at Level AA.
+          </p>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            This website is partially compliant with the WCAG 2.2 Level AA standard.
+          </p>
+        </section>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>What We Do to Ensure Accessibility</h2>
+          <ul style={{ lineHeight: 1.7 }}>
+            <li>Full keyboard navigation throughout the chat interface</li>
+            <li>Skip-to-content link for keyboard and screen reader users</li>
+            <li>Proper ARIA landmarks and live regions for dynamic content</li>
+            <li>Sufficient colour contrast ratios (minimum 4.5:1 for text)</li>
+            <li>Visible focus indicators for interactive elements</li>
+            <li>Semantic HTML structure with appropriate heading hierarchy</li>
+            <li>Alternative text for images</li>
+            <li>Accessible form inputs with associated labels</li>
+            <li>No time-limited content</li>
+            <li>No flashing content</li>
+          </ul>
+        </section>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>Known Limitations</h2>
+          <ul style={{ lineHeight: 1.7 }}>
+            <li>Network graph visualisations (SVG) convey information visually that may not be fully available to screen reader users, though graph titles and labels are provided as text.</li>
+            <li>AI-generated content may occasionally produce complex formatting that is not optimally structured for assistive technology.</li>
+          </ul>
+        </section>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>Feedback and Contact</h2>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            If you encounter any accessibility barriers when using this website, please contact us:
+          </p>
+          <ul style={{ lineHeight: 1.7 }}>
+            <li>Email: <a href="mailto:data@virtualflybrain.org" style={{ color: '#66d9ff' }}>data@virtualflybrain.org</a></li>
+          </ul>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            We aim to respond to accessibility feedback within 5 working days.
+          </p>
+        </section>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>Enforcement Procedure</h2>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            The Equality and Human Rights Commission (EHRC) is responsible for enforcing the
+            Public Sector Bodies (Websites and Mobile Applications) (No. 2) Accessibility
+            Regulations 2018. If you are not happy with how we respond to your complaint, contact
+            the{' '}
+            <a
+              href="https://www.equalityadvisoryservice.com/"
+              target="_blank"
+              rel="noopener noreferrer"
+              style={{ color: '#66d9ff', textDecoration: 'underline' }}
+            >
+              Equality Advisory and Support Service (EASS)
+            </a>.
+          </p>
+        </section>
+
+        <section style={{ marginTop: '28px' }}>
+          <h2 style={{ color: '#fff' }}>Preparation of This Statement</h2>
+          <p style={{ color: '#b8b8b8', lineHeight: 1.6 }}>
+            This statement was prepared on 26 March 2026. It was last reviewed on 26 March 2026.
+          </p>
+        </section>
+
+        <p style={{ marginTop: '28px' }}>
+          <a href="/" style={{ color: '#66d9ff', textDecoration: 'underline' }}>Back to VFB Chat</a>
+        </p>
+      </div>
+    </main>
+  )
+}