Add CBOR metadata indexes, local API and coordinated auto mining

index.html

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         <div id="active-wallet" hidden><p class="label">FAKE BTC BALANCE</p><div class="balance"><span id="balance">0</span><small>BTC</small></div><p id="reserved" class="muted"></p><label for="address">Local regtest-format address</label><input id="address" readonly><button id="export-wallet" class="quiet">↓ Save test wallet</button></div>
         <div class="wallet-footer"><label class="file-button" for="load-wallet">↑ Load test wallet or lab backup</label><input id="load-wallet" type="file" accept=".json,application/json"><p class="muted">Saved on this device. A wallet backup contains its test key; a lab backup also preserves the chain.</p></div>
       </article>
-      <article class="panel"><div class="panel-title"><span class="step">02</span><h2>Make some blocks</h2></div><p>Skip the faucet queue. Every block gives you <strong>50 fake BTC</strong>, ready to use immediately.</p><div class="chain-stats"><div><span class="label">BLOCK HEIGHT</span><strong id="height">0</strong></div><div><span class="label">PENDING TXS</span><strong id="pending">0</strong></div></div><button id="mine" class="primary" disabled>Mine a block <span>+</span></button><p class="muted">Mining also confirms your pending inscriptions.</p></article>
-      <article class="panel inscribe"><div class="panel-title"><span class="step">03</span><h2>Leave a little something</h2><span class="tag">INSCRIPTION LAB</span></div><label for="mime-type">Content type</label><select id="mime-type"></select><label for="body-file">Or upload a local file (16 KiB maximum)</label><input id="body-file" type="file"><label for="parent">Parent inscription (optional, immutable)</label><select id="parent"><option value="">No parent</option></select><label for="payload">What will you put on your chain?</label><textarea id="payload" placeholder="Hello, little Bitcoin universe…" rows="3" disabled></textarea><div class="compose-footer"><span id="byte-count" class="muted">0 / 16384 bytes</span><button id="review" disabled>Review inscription ↗</button></div>
-        <div id="review-panel" hidden><h3>Review before signing</h3><div id="review-preview"></div><pre id="review-text"></pre><p id="review-parent"></p><p>Two transactions: commit + reveal. <strong>1,000 fake sats</strong> in fees; <strong>1,000 fake sats</strong> reserved in your collectible. It returns to your current wallet.</p><p class="muted">The next button signs both transactions locally with this test wallet and submits them to your private chain.</p><button id="sign" class="primary">Sign & inscribe</button> <button id="cancel-review" class="quiet">Cancel</button></div>
+      <article class="panel"><div class="panel-title"><span class="step">02</span><h2>Make some blocks</h2></div><p>Skip the faucet queue. Every block gives you <strong>50 fake BTC</strong>, ready to use immediately.</p><div class="chain-stats"><div><span class="label">BLOCK HEIGHT</span><strong id="height">0</strong></div><div><span class="label">PENDING TXS</span><strong id="pending">0</strong></div></div><button id="mine" class="primary" disabled>Mine now <span>+</span></button><label for="miner-interval">Auto miner</label><select id="miner-interval"><option value="0">OFF</option><option value="10">10s</option><option value="30">30s</option><option value="60">60s</option></select><p id="miner-status" aria-live="polite">Auto mining OFF</p><p class="muted">Keep a lab tab open; browser throttling may delay blocks. Mining also confirms your pending inscriptions.</p></article>
+      <article class="panel inscribe"><div class="panel-title"><span class="step">03</span><h2>Leave a little something</h2><span class="tag">INSCRIPTION LAB</span></div><label for="mime-type">Content type</label><select id="mime-type"></select><label for="body-file">Or upload a local file (16 KiB maximum)</label><input id="body-file" type="file"><label for="parent">Parent inscription (optional, immutable)</label><select id="parent"><option value="">No parent</option></select><label for="payload">What will you put on your chain?</label><textarea id="payload" placeholder="Hello, little Bitcoin universe…" rows="3" disabled></textarea><label for="metadata">JSON metadata (optional, independent of body)</label><textarea id="metadata" rows="3" placeholder='{"protocol":"my-experiment","note":"hello"}'></textarea><p id="metadata-count" class="muted">0 / 2048 CBOR bytes · ord tag 5 · JSON is authoring format only</p><div class="compose-footer"><span id="byte-count" class="muted">0 / 16384 bytes</span><button id="review" disabled>Review inscription ↗</button></div>
+        <div id="review-panel" hidden><h3>Review before signing</h3><div id="review-preview"></div><pre id="review-text"></pre><p id="review-parent"></p><pre id="review-metadata"></pre><p>Two transactions: commit + reveal. <strong>1,000 fake sats</strong> in fees; <strong>1,000 fake sats</strong> reserved in your collectible. It returns to your current wallet.</p><p class="muted">The next button signs both transactions locally with this test wallet and submits them to your private chain.</p><button id="sign" class="primary">Sign & inscribe</button> <button id="cancel-review" class="quiet">Cancel</button></div>
       </article>
     </section>
     <section class="collection-section"><div class="section-title"><div><p class="eyebrow">04 / THE THINGS YOU MADE</p><h2>Your inscriptions <span id="collection-count">0</span></h2></div><span class="muted">Owned by this wallet</span></div><div id="collectibles" class="collectibles"><p class="empty">Your first inscription belongs here.<br><span>Fund your wallet, write some text, and make it yours.</span></p></div></section>
@@ -39,6 +39,20 @@
       </div>
       <article id="inspector" class="panel inspector" hidden tabindex="-1"></article>
     </section>
+    <section class="panel" id="indexes"><h2>Indexes</h2>
+      <p>Metadata is data; indexers are interpretation. Discovery uses the top-level metadata.protocol string. Raw events remain uninterpreted.</p>
+      <p id="index-stats"></p><label for="protocol">Discovered protocol names</label><select id="protocol"></select>
+      <p id="protocol-stats"></p><h3>Ordered raw events</h3><p class="muted">Confirmed blocks in chain order, then mempool order.</p><div id="protocol-events"></div>
+      <label for="reducer">Optional trusted local indexer</label><select id="reducer"><option value="">None</option><option value="event-counter">Example: event-counter</option></select>
+      <h3>Derived state (separate from raw events)</h3><pre id="derived-state">No reducer selected.</pre>
+    </section>
+    <section class="panel" id="api-explorer"><h2>API explorer <span class="tag">LOCAL / IN-BROWSER</span></h2>
+      <p>LocalOrdAPI reads this browser’s chain and indexes. These paths are not server URLs; the static host cannot access your lab.</p>
+      <label for="api-preset">Preset path</label><select id="api-preset"></select>
+      <label for="api-path">Local API path</label><input id="api-path" value="/r/blockheight">
+      <button id="api-try">Try</button> <button id="api-copy" class="quiet">Copy response</button>
+      <pre id="api-response" aria-live="polite">Choose a path and press Try.</pre>
+    </section>
     <details class="about"><summary>Under the hood & attribution</summary><p>Real serialized Bitcoin transactions, Schnorr signatures and Taproot commit/reveal scripts, on a deliberately simplified local UTXO chain. No proof of work, Bitcoin consensus, peer network, public broadcast, or production custody. Collectibles can only be spent by explicit child reveals that preserve the parent in the same wallet.</p><p>Built from and inspired by <a href="https://github.com/supertestnet/testnet_generator">Supertestnet’s testnet_generator</a>, <a href="https://github.com/supertestnet/inscriptions-online">inscriptions-online</a>, and <a href="https://github.com/supertestnet/vanilla-js-browser-wallet">vanilla-js-browser-wallet</a>. <a href="https://github.com/supertestnet/node_faker">node_faker</a> was evaluated for future RPC compatibility.</p><p>Transaction library: <a href="https://github.com/cmdruid/tapscript">tapscript by Christopher Scott</a> (<a href="/licenses/tapscript.txt">CC-BY-1.0</a>). <a href="/licenses/supertestnet-CC0.txt">Supertestnet CC0 license</a> · <a href="/licenses/noble-curves.txt">noble-curves license</a> · <a href="/licenses/noble-hashes.txt">noble-hashes license</a>.</p></details>
     <footer><span>SMALL CHAIN. BIG POSSIBILITIES.</span><button id="reset" class="quiet danger">Reset local lab</button></footer>
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