diff --git a/docs/src/components/contract-addresses.astro b/docs/src/components/contract-addresses.astro
index a4b24990..c1e3227e 100644
--- a/docs/src/components/contract-addresses.astro
+++ b/docs/src/components/contract-addresses.astro
@@ -33,12 +33,15 @@ const contractOrder = [
   'endorsements',
 ] as const
 
+// biome-ignore lint/correctness/noUnusedVariables: astro...
 const rows = contractOrder
   .filter((key) => {
+    // @ts-expect-error - chain.contracts is a record of ChainContract
     const contract = chain.contracts[key]
     return contract?.address && contract.address !== '0x0000000000000000000000000000000000000000'
   })
   .map((key) => {
+    // @ts-expect-error - chain.contracts is a record of ChainContract
     const contract = chain.contracts[key]
     const address = contract.address
     return {
diff --git a/packages/synapse-core/src/sp/sp.ts b/packages/synapse-core/src/sp/sp.ts
index 4220b98f..0ca7a499 100644
--- a/packages/synapse-core/src/sp/sp.ts
+++ b/packages/synapse-core/src/sp/sp.ts
@@ -5,7 +5,7 @@ import {
   AddPiecesError,
   CreateDataSetError,
   DeletePieceError,
-  DownloadPieceError,
+  type DownloadPieceError,
   FindPieceError,
   InvalidUploadSizeError,
   LocationHeaderError,
@@ -16,7 +16,6 @@ import type { PieceCID } from '../piece/piece.ts'
 import * as Piece from '../piece/piece.ts'
 import type * as TypedData from '../typed-data/index.ts'
 import { RETRY_CONSTANTS, SIZE_CONSTANTS } from '../utils/constants.ts'
-import { createPieceUrlPDP } from '../utils/piece-url.ts'
 import { isUint8Array } from '../utils/streams.ts'
 
 export namespace createDataSet {
diff --git a/packages/synapse-core/test/download-piece.ts b/packages/synapse-core/test/download-piece.ts
index 9430c7fc..665e24e4 100644
--- a/packages/synapse-core/test/download-piece.ts
+++ b/packages/synapse-core/test/download-piece.ts
@@ -4,7 +4,6 @@ import { HttpResponse, http } from 'msw'
 import { DownloadPieceError } from '../src/errors/pdp.ts'
 import { downloadAndValidate } from '../src/piece/download.ts'
 import * as Piece from '../src/piece/piece.ts'
-import {} from '../src/sp/sp.ts'
 
 describe('Piece download and validation', () => {
   const server = setup()
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 83f97687..b6fc42e4 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -14,7 +14,7 @@ allowBuilds:
 blockExoticSubdeps: true
 
 catalog:
-  '@biomejs/biome': 2.3.14
+  '@biomejs/biome': 2.4.4
   '@types/mocha': ^10.0.10
   '@types/node': ^25.1.0
   '@types/react': ^19.2.7
diff --git a/utils/data-sets-viewer.html b/utils/data-sets-viewer.html
index 2ea02a3d..5283a6d0 100644
--- a/utils/data-sets-viewer.html
+++ b/utils/data-sets-viewer.html
@@ -271,7 +271,7 @@ <h1>Data Sets Viewer</h1>
     </div>
     <div class="section">
         <h2>Connection</h2>
-        <button id="connectBtn">Connect MetaMask</button>
+        <button type="button" id="connectBtn">Connect MetaMask</button>
         <div id="connectionResult"></div>
     </div>
     <div class="section">
@@ -285,9 +285,9 @@ <h2>View Data Sets</h2>
             <label>Client Address:</label>
             <input type="text" id="clientAddressInput" placeholder="0x... (leave empty for connected wallet)">
         </div>
-        <button id="reconnectBtn" disabled>Reconnect with Selected Warm Storage</button>
-        <button id="getDataSetsBtn" disabled>Get Data Sets</button>
-        <button id="getMyDataSetsBtn" disabled>Get My Data Sets</button>
+        <button type="button" id="reconnectBtn" disabled>Reconnect with Selected Warm Storage</button>
+        <button type="button" id="getDataSetsBtn" disabled>Get Data Sets</button>
+        <button type="button" id="getMyDataSetsBtn" disabled>Get My Data Sets</button>
         <div id="dataSetsSummary" style="margin-top: 20px;"></div>
         <div id="dataSetsResult" class="data-sets-container"></div>
     </div>
diff --git a/utils/payment-apis-demo.html b/utils/payment-apis-demo.html
index a33ad489..7d4b3cb5 100644
--- a/utils/payment-apis-demo.html
+++ b/utils/payment-apis-demo.html
@@ -121,7 +121,7 @@ <h1>Synapse SDK - Enhanced Payment APIs Demo</h1>
     </div>
     <div class="section">
         <h2>Connection</h2>
-        <button id="connectBtn">Connect MetaMask</button>
+        <button type="button" id="connectBtn">Connect MetaMask</button>
         <div id="connectionResult"></div>
     </div>
     <div class="section">
@@ -129,16 +129,16 @@ <h2>Warm Storage Contract Configuration</h2>
         <div class="input-group">
             <label>Warm Storage Address:</label>
             <input type="text" id="warmStorageAddressInput" placeholder="0x..." value="">
-            <button id="updateWarm StorageBtn" disabled>Update Warm Storage Address</button>
+            <button type="button" id="updateWarm StorageBtn" disabled>Update Warm Storage Address</button>
         </div>
         <div id="warmStorageStatus" class="warning">Storage cost functions require Warm Storage contract to be
             configured</div>
     </div>
     <div class="section">
         <h2>Account Information</h2>
-        <button id="accountInfoBtn" disabled>Get Account Info</button>
-        <button id="walletBalanceBtn" disabled>Get Wallet Balances</button>
-        <button id="getCurrentEpochBtn" disabled>Get Current Epoch</button>
+        <button type="button" id="accountInfoBtn" disabled>Get Account Info</button>
+        <button type="button" id="walletBalanceBtn" disabled>Get Wallet Balances</button>
+        <button type="button" id="getCurrentEpochBtn" disabled>Get Current Epoch</button>
         <div id="accountResult" class="result"></div>
     </div>
     <div class="section">
@@ -158,7 +158,7 @@ <h2>Storage Cost Calculator</h2>
             <label>With CDN:</label>
             <input type="checkbox" id="costWithCDNCheckbox">
         </div>
-        <button id="calculateCostBtn" disabled>Calculate Storage Costs</button>
+        <button type="button" id="calculateCostBtn" disabled>Calculate Storage Costs</button>
         <div id="costResult" class="result"></div>
         <div id="fundingAnalysis" style="margin-top: 20px; display: none;">
             <h3>Funding Analysis</h3>
@@ -183,8 +183,8 @@ <h2>Storage Allowance Checker</h2>
             <label>With CDN:</label>
             <input type="checkbox" id="withCDNCheckbox">
         </div>
-        <button id="checkAllowanceBtn" disabled>Check Allowance</button>
-        <button id="prepareUploadBtn" disabled>Prepare Storage Upload</button>
+        <button type="button" id="checkAllowanceBtn" disabled>Check Allowance</button>
+        <button type="button" id="prepareUploadBtn" disabled>Prepare Storage Upload</button>
         <div id="allowanceResult" class="result"></div>
     </div>
     <!-- Load ethers.js first -->
diff --git a/utils/payments-demo.html b/utils/payments-demo.html
index 3e7c508f..784a16d7 100644
--- a/utils/payments-demo.html
+++ b/utils/payments-demo.html
@@ -232,7 +232,7 @@ <h1>Synapse Payments Demo</h1>
         <h3>Connection Status</h3>
         <div id="connectionInfo">
             <p><span class="status-indicator disconnected"></span> Not connected to MetaMask</p>
-            <button onclick="_connectWallet()">Connect MetaMask</button>
+            <button type="button" onclick="_connectWallet()">Connect MetaMask</button>
         </div>
     </div>
     <div class="section" id="balancesSection" style="display: none;">
@@ -253,15 +253,15 @@ <h2>Account Balances</h2>
             <span class="balance-label">USDFC Balance (Payments Contract):</span>
             <span class="balance-value" id="usdfcPaymentsBalance">-</span>
         </div>
-        <button onclick="refreshBalances()">Refresh Balances</button>
+        <button type="button" onclick="refreshBalances()" disabled>Refresh Balances</button>
     </div>
     <div class="section" id="operationsSection" style="display: none;">
         <h2>Payment Operations</h2>
         <div class="tab-container">
             <div class="tabs">
-                <button class="tab active" onclick="switchTab('deposit')">Deposit/Withdraw</button>
-                <button class="tab" onclick="switchTab('token')">Token Approvals</button>
-                <button class="tab" onclick="switchTab('service')">Service Approvals</button>
+                <button class="tab active" type="button" onclick="switchTab('deposit')">Deposit/Withdraw</button>
+                <button class="tab" type="button" onclick="switchTab('token')">Token Approvals</button>
+                <button class="tab" type="button" onclick="switchTab('service')">Service Approvals</button>
             </div>
             <!-- Deposit/Withdraw Tab -->
             <div class="tab-content active" id="depositTab">
@@ -274,7 +274,7 @@ <h3>Deposit USDFC</h3>
                             <label>Amount (USDFC):</label>
                             <input type="number" id="depositAmount" placeholder="10.0" step="0.1" min="0">
                         </div>
-                        <button onclick="deposit()">Deposit</button>
+                        <button type="button" onclick="deposit()">Deposit</button>
                         <div id="depositResult"></div>
                     </div>
                     <div>
@@ -284,7 +284,7 @@ <h3>Withdraw USDFC</h3>
                             <label>Amount (USDFC):</label>
                             <input type="number" id="withdrawAmount" placeholder="10.0" step="0.1" min="0">
                         </div>
-                        <button onclick="withdraw()">Withdraw</button>
+                        <button type="button" onclick="withdraw()">Withdraw</button>
                         <div id="withdrawResult"></div>
                     </div>
                 </div>
@@ -300,7 +300,7 @@ <h3>Check Allowance</h3>
                             <input type="text" id="allowanceSpender" placeholder="0x...">
                             <small style="color: #666;">Default: Payments Contract</small>
                         </div>
-                        <button onclick="checkAllowance()">Check Allowance</button>
+                        <button type="button" onclick="checkAllowance()">Check Allowance</button>
                         <div id="allowanceResult"></div>
                     </div>
                     <div>
@@ -316,7 +316,7 @@ <h3>Approve Token Spending</h3>
                             <label>Amount (USDFC):</label>
                             <input type="number" id="approveAmount" placeholder="100.0" step="0.1" min="0">
                         </div>
-                        <button onclick="approveToken()">Approve</button>
+                        <button type="button" onclick="approveToken()">Approve</button>
                         <div id="approveResult"></div>
                     </div>
                 </div>
@@ -339,7 +339,7 @@ <h4>Check Service Approval</h4>
                                 <input type="text" id="checkServiceAddress" placeholder="0x...">
                                 <small style="color: #666;">Warm Storage address</small>
                             </div>
-                            <button onclick="checkServiceApproval()">Check Approval</button>
+                            <button type="button" onclick="checkServiceApproval()">Check Approval</button>
                             <div id="checkServiceResult"></div>
                         </div>
                         <div>
@@ -363,7 +363,7 @@ <h4>Approve Service</h4>
                                 <input type="number" id="maxLockupPeriod" placeholder="86400" step="1" min="0">
                                 <small style="color: #666;">Default: 86400 epochs (30 days)</small>
                             </div>
-                            <button onclick="approveService()">Approve Service</button>
+                            <button type="button" onclick="approveService()">Approve Service</button>
                             <div id="approveServiceResult"></div>
                         </div>
                         <div>
@@ -372,7 +372,7 @@ <h4>Revoke Service</h4>
                                 <label>Service Contract Address:</label>
                                 <input type="text" id="revokeServiceAddress" placeholder="0x...">
                             </div>
-                            <button onclick="revokeService()">Revoke Service</button>
+                            <button type="button" onclick="revokeService()">Revoke Service</button>
                             <div id="revokeServiceResult"></div>
                         </div>
                     </div>
diff --git a/utils/pdp-auth-demo.html b/utils/pdp-auth-demo.html
index 58b41c60..908c8ee0 100644
--- a/utils/pdp-auth-demo.html
+++ b/utils/pdp-auth-demo.html
@@ -145,7 +145,7 @@
     <h1>PDP Auth Signature Demo</h1>
     <div class="container">
         <div id="status" class="status disconnected"> Not connected to MetaMask </div>
-        <button id="connectWallet" class="connect-button">Connect MetaMask</button>
+        <button type="button" id="connectWallet" class="connect-button">Connect MetaMask</button>
         <div id="accountInfo"></div>
     </div>
     <div class="container">
@@ -178,7 +178,7 @@ <h2>1. Create Data Set</h2>
             <label>
                 <input type="checkbox" id="createWithCDN"> With CDN </label>
         </div>
-        <button id="signCreateDataSet">Sign Create Data Set</button>
+        <button type="button" id="signCreateDataSet">Sign Create Data Set</button>
         <div id="createDataSetResult"></div>
     </div>
     <div class="container">
@@ -196,9 +196,9 @@ <h2>2. Add Pieces</h2>
         <div id="piecesContainer">
             <h3>Piece Data Entries</h3>
             <div id="pieceEntries"></div>
-            <button id="addPieceEntry">Add Piece Entry</button>
+            <button type="button" id="addPieceEntry">Add Piece Entry</button>
         </div>
-        <button id="signAddPieces">Sign Add Pieces</button>
+        <button type="button" id="signAddPieces">Sign Add Pieces</button>
         <div id="addPiecesResult"></div>
     </div>
     <div class="container">
@@ -213,7 +213,7 @@ <h2>3. Schedule Removals</h2>
             <label for="removePieceIds">Piece IDs (comma-separated):</label>
             <input type="text" id="removePieceIds" placeholder="1,3,5" value="1,3,5">
         </div>
-        <button id="signScheduleRemovals">Sign Schedule Removals</button>
+        <button type="button" id="signScheduleRemovals">Sign Schedule Removals</button>
         <div id="scheduleRemovalsResult"></div>
     </div>
     <div class="container">
@@ -223,7 +223,7 @@ <h2>4. Delete Data Set</h2>
             <label for="deleteClientDataSetId">Client Data Set ID:</label>
             <input type="text" id="deleteClientDataSetId" placeholder="12345" value="12345">
         </div>
-        <button id="signDeleteDataSet">Sign Delete Data Set</button>
+        <button type="button" id="signDeleteDataSet">Sign Delete Data Set</button>
         <div id="deleteDataSetResult"></div>
     </div>
     <!-- Load ethers and SDK -->
diff --git a/utils/pdp-tool-test.html b/utils/pdp-tool-test.html
index 25b00808..14cf3437 100644
--- a/utils/pdp-tool-test.html
+++ b/utils/pdp-tool-test.html
@@ -197,7 +197,7 @@ <h1>Synapse PDP Testing Tool</h1>
         </div>
         <div class="form-group">
             <label>Wallet Connection:</label>
-            <button id="connectWalletBtn">Connect MetaMask</button>
+            <button type="button" id="connectWalletBtn">Connect MetaMask</button>
             <div id="walletStatus" class="help-text">Click to connect your MetaMask wallet for signing</div>
         </div>
         <div class="form-group">
@@ -214,7 +214,7 @@ <h1>Synapse PDP Testing Tool</h1>
         <div class="section">
             <h2>Service Providers</h2>
             <div class="form-group">
-                <button id="listProvidersBtn">List Approved Providers</button>
+                <button type="button" id="listProvidersBtn">List Approved Providers</button>
                 <div class="help-text">View all service providers approved to use this Warm Storage service</div>
             </div>
             <div id="providersStatus" class="status info" style="display: none; margin-top: 10px;"></div>
@@ -246,9 +246,10 @@ <h2>Create Data Set</h2>
                 <div class="help-text">Whether to enable CDN services for faster retrieval</div>
             </div>
             <div class="form-group">
-                <button id="createDataSetBtn" disabled>Create Data Set</button>
-                <button id="checkStatusBtn" disabled>Check Status</button>
-                <button id="autoMonitorBtn" disabled style="background-color: #28a745;">Auto-Monitor</button>
+                <button type="button" id="createDataSetBtn" disabled>Create Data Set</button>
+                <button type="button" id="checkStatusBtn" disabled>Check Status</button>
+                <button type="button" id="autoMonitorBtn" disabled
+                    style="background-color: #28a745;">Auto-Monitor</button>
             </div>
         </div>
         <!-- ADD PIECES SECTION -->
@@ -294,10 +295,11 @@ <h4>Piece Entry 1</h4>
                         <button type="button" class="remove-piece-btn" onclick="removePieceEntry(this)">Remove</button>
                     </div>
                 </div>
-                <button type="button" class="add-piece-btn" onclick="addPieceEntry()">Add Another Piece</button>
+                <button type="button" class="add-piece-btn" onclick="addPieceEntry()" disabled>Add Another
+                    Piece</button>
             </div>
             <div class="form-group">
-                <button id="addPiecesBtn" disabled>Add Pieces</button>
+                <button type="button" id="addPiecesBtn" disabled>Add Pieces</button>
             </div>
         </div>
         <!-- MONITOR DATA SET SECTION -->
@@ -309,7 +311,7 @@ <h2>Monitor Data Set</h2>
                 <div class="help-text">Enter a data set creation transaction hash to monitor its status</div>
             </div>
             <div class="form-group">
-                <button id="monitorTxBtn">Check Transaction Status</button>
+                <button type="button" id="monitorTxBtn">Check Transaction Status</button>
             </div>
         </div>
         <div id="status" class="status info" style="display: none;"></div>
diff --git a/utils/service-provider-tool.html b/utils/service-provider-tool.html
index 1f7855b0..b257fc23 100644
--- a/utils/service-provider-tool.html
+++ b/utils/service-provider-tool.html
@@ -179,8 +179,9 @@ <h1>Service Provider Tool</h1>
             <div class="input-group">
                 <label for="contractAddressInput">WarmStorage Contract Address:</label>
                 <input type="text" id="contractAddressInput" value="" placeholder="Will auto-detect based on network">
-                <button onclick="updateContractAddress()" style="margin-top: 5px;">Update Contract</button>
-                <button onclick="resetToDefault()" style="margin-top: 5px;">Reset to Default</button>
+                <button type="button" onclick="updateContractAddress()" style="margin-top: 5px;">Update
+                    Contract</button>
+                <button type="button" onclick="resetToDefault()" style="margin-top: 5px;">Reset to Default</button>
             </div>
             <strong>Network:</strong> <span id="networkDisplay">Connect wallet to detect network</span>
         </div>
@@ -194,14 +195,14 @@ <h2>Authentication</h2>
                 </select>
             </div>
             <div id="metamaskAuth">
-                <button onclick="connectMetaMask()">Connect MetaMask</button>
+                <button type="button" onclick="connectMetaMask()">Connect MetaMask</button>
             </div>
             <div id="privateKeyAuth" style="display: none;">
                 <div class="input-group">
                     <label for="privateKey">Private Key (with or without 0x prefix):</label>
                     <input type="password" id="privateKey" placeholder="Enter your private key">
                 </div>
-                <button onclick="connectPrivateKey()">Connect with Private Key</button>
+                <button type="button" onclick="connectPrivateKey()">Connect with Private Key</button>
             </div>
             <div id="connectionStatus" class="status info" style="display: none;"></div>
         </div>
@@ -253,29 +254,29 @@ <h2>Register as Service Provider</h2>
             <div class="status warning">
                 <strong>Note:</strong> Registration requires a 5 FIL fee. Make sure your wallet has sufficient balance.
             </div>
-            <button onclick="registerProvider()">Register Provider (5 FIL fee)</button>
+            <button type="button" onclick="registerProvider()">Register Provider (5 FIL fee)</button>
         </div>
         <div id="queryTab" class="tab-content">
             <h2>Query Provider Information</h2>
             <div class="action-buttons">
-                <button onclick="getProviderCount()">Get Provider Count</button>
-                <button onclick="getActiveProviderCount()">Get Active Provider Count</button>
-                <button onclick="getAllProviders()">List All Active Providers</button>
+                <button type="button" onclick="getProviderCount()">Get Provider Count</button>
+                <button type="button" onclick="getActiveProviderCount()">Get Active Provider Count</button>
+                <button type="button" onclick="getAllProviders()">List All Active Providers</button>
             </div>
             <div class="input-group" style="margin-top: 20px;">
                 <label for="queryAddress">Provider Address to Query:</label>
                 <input type="text" id="queryAddress" placeholder="0x...">
             </div>
             <div class="action-buttons">
-                <button onclick="checkRegistration()">Check if Registered</button>
-                <button onclick="getProviderId()">Get Provider ID</button>
-                <button onclick="getProviderInfo()">Get Provider Info</button>
+                <button type="button" onclick="checkRegistration()">Check if Registered</button>
+                <button type="button" onclick="getProviderId()">Get Provider ID</button>
+                <button type="button" onclick="getProviderInfo()">Get Provider Info</button>
             </div>
             <div class="input-group" style="margin-top: 20px;">
                 <label for="queryId">Provider ID to Query:</label>
                 <input type="text" id="queryId" placeholder="1">
             </div>
-            <button onclick="getProviderById()">Get Provider by ID</button>
+            <button type="button" onclick="getProviderById()">Get Provider by ID</button>
         </div>
         <div id="output"></div>
     </div>