diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d9e8b1a4..54629fe4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
           cache: "npm"
           cache-dependency-path: package-lock.json
 
@@ -71,7 +71,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
           cache: "npm"
           cache-dependency-path: package-lock.json
 
diff --git a/.github/workflows/pr-test-gate.yml b/.github/workflows/pr-test-gate.yml
index b2471627..d2b09b9e 100644
--- a/.github/workflows/pr-test-gate.yml
+++ b/.github/workflows/pr-test-gate.yml
@@ -46,7 +46,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
           cache: "npm"
           cache-dependency-path: package-lock.json
 
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 5f48309b..d78e277f 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -24,7 +24,7 @@ jobs:
     - name: Setup Node.js
       uses: actions/setup-node@v4
       with:
-        node-version: '20.19.0'
+        node-version: '22'
         cache: 'npm'
         
     - name: Install dependencies
diff --git a/backend/src/middleware/auth.ts b/backend/src/middleware/auth.ts
index 082d447d..dee07b54 100644
--- a/backend/src/middleware/auth.ts
+++ b/backend/src/middleware/auth.ts
@@ -113,7 +113,14 @@ export function verifyJwt(token: string): { publicKey: string } | null {
     }
 
     // Use timingSafeEqual to prevent timing attacks
-    if (providedSig.length !== expected.length || !crypto.timingSafeEqual(providedSig, expected)) {
+    // This will throw if lengths differ, or return false if content differs
+    try {
+      const result = crypto.timingSafeEqual(providedSig, expected);
+      // timingSafeEqual returns true when equal, false when not equal (same length, different content)
+      if (result === false) {
+        return null;
+      }
+    } catch {
       return null;
     }
 
diff --git a/contracts/stream_contract/src/test.rs b/contracts/stream_contract/src/test.rs
index afb15ca1..e211c085 100644
--- a/contracts/stream_contract/src/test.rs
+++ b/contracts/stream_contract/src/test.rs
@@ -180,6 +180,20 @@ fn test_update_fee_config_rejects_invalid_fee_rate() {
     assert_eq!(result, Err(Ok(StreamError::InvalidFeeRate)));
 }
 
+#[test]
+fn test_update_fee_config_rejects_not_initialized() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let client = create_contract(&env);
+
+    let admin = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    // Call update_fee_config before initialize
+    let result = client.try_update_fee_config(&admin, &treasury, &100);
+    assert_eq!(result, Err(Ok(StreamError::NotInitialized)));
+}
+
 #[test]
 fn test_initialize_emits_event() {
     let env = Env::default();
diff --git a/frontend/src/components/dashboard/dashboard-view.tsx b/frontend/src/components/dashboard/dashboard-view.tsx
index 5dac949f..4d0cb27a 100644
--- a/frontend/src/components/dashboard/dashboard-view.tsx
+++ b/frontend/src/components/dashboard/dashboard-view.tsx
@@ -884,7 +884,8 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {
                 <p>Save recurring stream settings once, apply instantly, then override before submitting.</p>
 
                 <div className="stream-template-editor">
-                  <input value={templateNameInput} onChange={(e) => setTemplateNameInput(e.target.value)} placeholder="e.g. Monthly Contributor Payroll" aria-label="Template name" />
+                  <label htmlFor="template-name-input" style={{ position: 'absolute', width: '1px', height: '1px', padding: 0, margin: '-1px', overflow: 'hidden', clip: 'rect(0, 0, 0, 0)', whiteSpace: 'nowrap', borderWidth: 0 }}>Template name</label>
+                  <input id="template-name-input" value={templateNameInput} onChange={(e) => setTemplateNameInput(e.target.value)} placeholder="e.g. Monthly Contributor Payroll" aria-label="Template name" />
                   <div className="stream-template-editor__actions">
                     <button type="button" className="secondary-button" disabled={!isTemplateNameValid} onClick={handleSaveTemplate}>{saveTemplateButtonLabel}</button>
                     {editingTemplateId ? <button type="button" className="secondary-button" onClick={handleClearTemplateEditor}>Stop Editing</button> : null}
@@ -918,28 +919,28 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {
                     <h4>Stream Configuration</h4>
                     <p>{requiredFieldsCompleted} / 5 required fields completed</p>
                   </div>
-                  <label className="stream-form__template-select">
+                  <label className="stream-form__template-select" htmlFor="template-select">
                     Load template
-                    <select value={selectedTemplateId ?? ""} onChange={(e) => { const id = e.target.value; if (!id) { setSelectedTemplateId(null); return; } handleApplyTemplate(id); }}>
+                    <select id="template-select" value={selectedTemplateId ?? ""} onChange={(e) => { const id = e.target.value; if (!id) { setSelectedTemplateId(null); return; } handleApplyTemplate(id); }}>
                       <option value="">Select saved template</option>
                       {templates.map((t) => <option key={t.id} value={t.id}>{t.name}</option>)}
                     </select>
                   </label>
                 </div>
 
-                <label>Recipient Address<input required type="text" value={streamForm.recipient} onChange={(e) => updateStreamForm("recipient", e.target.value)} placeholder="G..." /></label>
+                <label htmlFor="stream-recipient">Recipient Address<input id="stream-recipient" required type="text" value={streamForm.recipient} onChange={(e) => updateStreamForm("recipient", e.target.value)} placeholder="G..." /></label>
                 <div className="stream-form__row">
-                  <label>Token<input required type="text" value={streamForm.token} onChange={(e) => updateStreamForm("token", e.target.value.toUpperCase())} placeholder="USDC" /></label>
-                  <label>Total Amount<input required type="number" min="0" step="0.0000001" value={streamForm.totalAmount} onChange={(e) => updateStreamForm("totalAmount", e.target.value)} placeholder="100" /></label>
+                  <label htmlFor="stream-token">Token<input id="stream-token" required type="text" value={streamForm.token} onChange={(e) => updateStreamForm("token", e.target.value.toUpperCase())} placeholder="USDC" /></label>
+                  <label htmlFor="stream-total-amount">Total Amount<input id="stream-total-amount" required type="number" min="0" step="0.0000001" value={streamForm.totalAmount} onChange={(e) => updateStreamForm("totalAmount", e.target.value)} placeholder="100" /></label>
                 </div>
                 <div className="stream-form__row">
-                  <label>Starts At<input required type="datetime-local" value={streamForm.startsAt} onChange={(e) => updateStreamForm("startsAt", e.target.value)} /></label>
-                  <label>Ends At<input required type="datetime-local" value={streamForm.endsAt} onChange={(e) => updateStreamForm("endsAt", e.target.value)} /></label>
+                  <label htmlFor="stream-starts-at">Starts At<input id="stream-starts-at" required type="datetime-local" value={streamForm.startsAt} onChange={(e) => updateStreamForm("startsAt", e.target.value)} /></label>
+                  <label htmlFor="stream-ends-at">Ends At<input id="stream-ends-at" required type="datetime-local" value={streamForm.endsAt} onChange={(e) => updateStreamForm("endsAt", e.target.value)} /></label>
                 </div>
                 <div className="stream-form__row">
-                  <label>Cadence (seconds)<input type="number" min="1" step="1" value={streamForm.cadenceSeconds} onChange={(e) => updateStreamForm("cadenceSeconds", e.target.value)} /></label>
+                  <label htmlFor="stream-cadence">Cadence (seconds)<input id="stream-cadence" type="number" min="1" step="1" value={streamForm.cadenceSeconds} onChange={(e) => updateStreamForm("cadenceSeconds", e.target.value)} /></label>
                 </div>
-                <label>Note<textarea value={streamForm.note} onChange={(e) => updateStreamForm("note", e.target.value)} placeholder="Optional internal note for this stream configuration." /></label>
+                <label htmlFor="stream-note">Note<textarea id="stream-note" value={streamForm.note} onChange={(e) => updateStreamForm("note", e.target.value)} placeholder="Optional internal note for this stream configuration." /></label>
 
                 <div className="stream-form__actions">
                   <button type="submit" className="wallet-button" disabled={isFormSubmitting}>{isFormSubmitting ? "Submitting..." : "Create Stream"}</button>