hive ui: remove the BUILD L0GS tab and the live build-log panel

A build's output and history are the swarm's builds Grafana board now, from the
lines hive-c0re logs. Removes the tab and its pane, the live log under the
rebuild queue, their styles, the log stream helper and the duration formatter
only they used, and the docs; also the tab-counts sentence 5925 missed.

docs/web-ui/README.md

@@ -20,9 +20,8 @@ page with four tabs:
 
 - **4G3NTS** — every agent, live. This is the default tab and the one
   you'll check most.
-- **R3BU1LD QU3U3** and **BUILD L0GS** — the build
+- **R3BU1LD QU3U3** — the rebuild queue. A build's output and history are on the
-  lifecycle: the rebuild queue with a live log of whatever is building,
+  swarm's `builds` Grafana board.
-  and the build log history.
 - **K3PT ST4T3** — kept state from agents with no container
   (tombstones), with a purge button per entry.
 

docs/web-ui/dashboard.md

@@ -11,7 +11,7 @@ matrix accounts, the controller's job graph — are on the
 hive-c0re serves the dashboard at `/`.
 It has a fixed chrome header at the top and a `<main>` that shows exactly
 one tab pane at a time. The URL hash (`#agents`, `#rebuild`, `#meta`,
-`#buildlogs`, `#kept`) drives which pane is
+`#kept`) drives which pane is
 active; hash changes don't reload the page. ST4TS
 is a standalone page reached from the pages menu, not from the
 dashboard tab strip.
@@ -35,10 +35,8 @@ dashboard tab strip.
   If the name doesn't load the avatar shows a question mark, and without the URL the
   popover has no links.
 - **Tab strip**: `◆ 4G3NTS ◆`, `◆ R3BU1LD QU3U3 ◆`,
-  `◆ BUILD L0GS ◆`, `◆ K3PT ST4T3 ◆`. In-page tabs only — ST4TS
+  `◆ K3PT ST4T3 ◆`. In-page tabs only — ST4TS
-  lives on its own page, reached from the pages menu. Count pills on
+  lives on its own page, reached from the pages menu.
-  4G3NTS (stale containers), R3BU1LD QU3U3 (rebuilds in flight) and
-  K3PT ST4T3 (kept-state entries).
 - **Banner-thin** (`░▒▓█▓▒░ HYPERHIVE / HIVE-C0RE / WE ARE THE WIRED ░▒▓█▓▒░`)
   — sits below the tab strip.
 - **No warning banner.** No page shows hive-level warnings (host disk
@@ -97,12 +95,9 @@ container is all hive-c0re can actually prove. Fixing it properly
 needs a recorded destroy — **deferred** to the swarm-controller /
 snapshot-storage rework where the problem changes shape.
 
-## Build tabs (`#rebuild`, `#buildlogs`)
+## Build tab (`#rebuild`)
 
-The build lifecycle — rebuild queue, live build log, and
+The rebuild queue is the **R3BU1LD QU3U3** tab (`#rebuild`). It lives in `builds.js`, which `tabs.js` imports: the
-build log history — is two tabs of the dashboard: **R3BU1LD QU3U3**
-(`#rebuild`) and **BUILD L0GS**
-(`#buildlogs`). They live in `builds.js`, which `tabs.js` imports: the
 dashboard's one tab strip, `/api/state` snapshot and
 `/api/dashboard/stream` subscription serve them, with
 `rebuild_queue_changed` on the stream alongside the dashboard's other
@@ -156,7 +151,7 @@ the tree — one per lifecycle state, matching the row glyphs — lets the
 operator narrow which root groups render; unchecking a state re-fetches
 `GET /api/jobq/graph?states=<checked, comma-joined>` rather than
 hiding rows client-side, so the `onUpdate` callback's node list (and
-everything downstream of it — the live-log panel) only
+everything downstream of it) only
 ever sees what's actually shown. Filtering is by a **root's own**
 state, which is already its subtree's rolled-up answer, so the filter
 keeps or drops a whole group, never splitting mid-tree. Default selection is
@@ -169,34 +164,9 @@ root set — the history cap and the state filter are independent
 concerns, so a narrow filter never reaches further back in time to
 compensate.
 
-Below the queue, a **live build-log panel** (`#rebuild-live-log`,
+A build's output and history aren't on this page. hive-c0re logs every container build
-`renderRebuildLiveLog`) shows the currently running rebuild's output
+to the journal, and the swarm's `builds` Grafana board reads those lines: the builds with
-inline — collapsible, with a live/ok/fail badge and a `↓ raw`
+their outcome and runtime, and the output of the one you pick.
-download. It's keyed to the first `Running` node (in wire order)
-whose `payload.data.build_log_id` has a value — read from the `onUpdate`
-callback's node list, no separate
-fetch — and **polls** `GET /api/build-log/{id}` every 2s
-(`fetchAndRenderLiveLog` / `liveLogPollTimer`); not an `EventSource`
-(that's the BUILD L0GS tab's own per-row expand view below — `GET
-/api/build-logs/id/{id}/stream`, real SSE, replays accumulated output
-on connect — a separate mechanism). The live-log panel lives in its
-own container outside `#rebuild-queue-section` so the mounted
-`JobqGraph`'s own re-renders never disturb the open poll; it hides
-when nothing is building.
-
-
-**BUILD L0GS** — all-agents build log history. Lazy-loaded on first tab
-activation; autorefreshes when
-`rebuild_queue_changed` fires. Fetches `GET /api/build-logs?limit=30`.
-Renders a scrollable list of build entries; each row is a collapsible
-button showing status badge (`live` / `ok` / `fail`), agent name,
-elapsed duration, build kind, age, and the invocation command line.
-Expanding a row fetches the full stdout+stderr via
-`GET /api/build-logs/id/{id}`. A live in-progress build shows a `live`
-badge with a ticking elapsed-time chip; expanding streams output via
-`GET /api/build-logs/id/{id}/stream` with sticky-bottom autoscroll
-(suspends on manual scroll-up). Deep-link: `?id=N#buildlogs` opens the
-entry with that id pre-expanded.
 
 ## ST4TS page (`/stats.html`)
 
@@ -544,11 +514,10 @@ below — some endpoints aren't in it yet.
   404 when the row is missing (vacuum-reaped or stale id).
 - `GET /api/build-logs/id/{id}/stream` — live SSE stream of
   stdout+stderr for an in-progress build (newline-delimited JSON
-  frames). Used by the expanding live-row view in the BUILD L0GS tab. The
+  frames). The
   stream closes when the build finishes or errors.
 - `GET /api/build-logs/id/{id}/raw` — raw concatenated
-  stdout+stderr as `text/plain`. Used by the `↓ raw` / `↓ download
+  stdout+stderr as `text/plain`. Works on both finished and in-progress
-  raw` links in the build tabs. Works on both finished and in-progress
   build logs.
 - `GET /api/reminders` — list pending reminders for the
   dashboard's queued-reminders panel.

frontend/packages/dashboard/src/builds.js

@@ -1,24 +1,18 @@
-// The build lifecycle tabs of the dashboard — rebuild queue, live build
+// The rebuild queue tab of the dashboard (R3BU1LD QU3U3): pending and running
-// log, and build log history. Not an entry point: tabs.js
+// rebuilds as a `JobqGraph`. Not an entry point: tabs.js imports it, owns the
-// imports it, owns the tab strip and the dashboard event stream, and calls
+// tab strip and the dashboard event stream, and calls the exports below. The
-// the exports below. Two tabs, the panes' ids matching the tab ids:
+// builds' output and history are not here: they are the `builds` Grafana board,
-//   - rebuild    (R3BU1LD QU3U3): pending + running rebuilds + live build log
+// from the lines hive-c0re logs for each build.
-//   - buildlogs  (BUILD L0GS):    all-agents build log history, lazy-loaded
-//                                 the first time the tab is shown
 
-import { $, fmtAgeSecs, openBuildLogStream } from "./common.js";
+import { $ } from "./common.js";
-import { el } from "@hive/shared/dom.js";
 import { themedConfirm } from "@hive/shared/modal.js";
 import { h, render } from "preact";
-import { fmtDuration } from "./util.js";
 import { JobqGraph } from "@hive/shared/jobq-graph.js";
 
-// ─── derived state ───────────────────────────────────────────────────────────
+// Kept in sync from JobqGraph's `onUpdate` callback (see renderRebuildQueue
-
+// below) — the component owns fetching GET /api/jobq/graph and renders the tree
-// Kept in sync from JobqGraph's `onUpdate` callback (see mountRebuildQueue
+// itself; this flat array is only for `onCancel`, which names the node it
-// below) — the component owns fetching GET /api/jobq/graph and renders
+// cancels in its confirm.
-// the tree itself; this flat array exists only for the two things it
-// doesn't render: the count-pill and the live-log panel.
 let jobqNodes = [];
 let jobqGraphToken = 0;
 
@@ -29,8 +23,7 @@ let jobqGraphToken = 0;
 // no hand-rolled tree/roll-up rendering here anymore. The component owns
 // fetching GET /api/jobq/graph and its own refetch (bump `jobqGraphToken`
 // and render again); this page just reads its `onUpdate` callback to keep
-// `jobqNodes` (the flat array) in sync for the two things the generic
+// `jobqNodes` (the flat array) in sync for `onCancel` below.
-// view doesn't render itself: the count-pill and the live-log panel below.
 //
 // Cancel is the one action this page *does* wire up: the `cancellable`
 // prop turns on the component's own per-node cancel button, which calls
@@ -60,7 +53,6 @@ function renderRebuildQueue() {
       refreshToken: jobqGraphToken,
       onUpdate: (nodes) => {
         jobqNodes = nodes || [];
-        renderRebuildLiveLog();
       },
       onCancel: async (id) => {
         const node = jobqNodes.find((n) => n.id === id);
@@ -90,391 +82,19 @@ function renderRebuildQueue() {
   );
 }
 
-// ─── running-rebuild live log ─────────────────────────────────────────────────
-// One persistent live-log panel for the first currently-building node.
-// Keyed to that node's id and kept in its own container (#rebuild-live-log)
-// so the queue's row re-render never tears down an open poll.
-//
-// Build logs are fetched by polling GET /api/build-log/<node_id> (returns
-// {stdout, stderr}) rather than SSE — a running node's log re-fetches on the
-// rebuild_queue_changed tick; a terminal node's log is static (one last fetch
-// on transition, then done).
-let liveLogId = null; // current node id being shown
-let liveLogDone = false; // true once the node left 'Running'
-let liveLogCollapsed = false;
-let liveLogPollTimer = null;
-
-function clearLiveLogPoll() {
-  if (liveLogPollTimer) {
-    clearInterval(liveLogPollTimer);
-    liveLogPollTimer = null;
-  }
-}
-
-// First running node with a log, in wire order (root-then-subtree per
-// root, roots in enqueue order — see hive-jobq-wire's wire_snapshot doc).
-// Gate on build_log_id so lock/noop/store-only nodes don't open a blank
-// panel.
-function findLiveBuild() {
-  return (
-    jobqNodes.find(
-      (n) =>
-        n.state === "Running" &&
-        n.payload.data &&
-        n.payload.data.build_log_id != null,
-    ) || null
-  );
-}
-
-async function fetchAndRenderLiveLog(nodeId, pre) {
-  try {
-    const r = await fetch("/api/build-log/" + nodeId);
-    if (!r.ok) return;
-    const data = await r.json();
-    const text = [
-      data.stdout,
-      data.stderr ? "--- stderr ---\n" + data.stderr : "",
-    ]
-      .filter(Boolean)
-      .join("\n");
-    if (pre.textContent !== text) {
-      const atBottom = pre.scrollHeight - pre.scrollTop - pre.clientHeight < 40;
-      pre.textContent = text;
-      if (atBottom) pre.scrollTop = pre.scrollHeight;
-    }
-  } catch {
-    /* network blip — ignore, next poll will retry */
-  }
-}
-
-function renderRebuildLiveLog() {
-  const root = $("rebuild-live-log");
-  if (!root) return;
-  const liveNode = findLiveBuild();
-
-  if (!liveNode) {
-    clearLiveLogPoll();
-    liveLogId = null;
-    liveLogDone = false;
-    if (!root.hidden) {
-      root.hidden = true;
-      root.replaceChildren();
-    }
-    return;
-  }
-
-  // Same node, already polling — just let the timer tick (or do a final
-  // fetch if the node just went non-running and we haven't marked done yet).
-  if (liveNode.id === liveLogId) {
-    if (!liveLogDone && liveNode.state !== "Running") {
-      clearLiveLogPoll();
-      liveLogDone = true;
-      const pre = root.querySelector(".rebuild-live-log-output");
-      const badge = root.querySelector(".rebuild-live-log-badge");
-      if (pre) fetchAndRenderLiveLog(liveNode.id, pre);
-      if (badge) {
-        const ok = liveNode.state !== "Failed";
-        badge.className =
-          "rebuild-live-log-badge " + (ok ? "rll-ok" : "rll-fail");
-        badge.textContent = liveNode.state;
-      }
-    }
-    return;
-  }
-
-  // New node — tear down old poll, rebuild the panel.
-  clearLiveLogPoll();
-  liveLogId = liveNode.id;
-  liveLogDone = false;
-  root.hidden = false;
-  root.replaceChildren();
-
-  const pre = el("pre", { class: "rebuild-live-log-output" }, "");
-  pre.hidden = liveLogCollapsed;
-  const badge = el(
-    "span",
-    { class: "rebuild-live-log-badge rll-running" },
-    "live",
-  );
-  const toggle = el(
-    "button",
-    {
-      type: "button",
-      class: "rebuild-live-log-toggle",
-      "aria-expanded": String(!liveLogCollapsed),
-      title: liveLogCollapsed ? "expand live log" : "collapse live log",
-    },
-    liveLogCollapsed ? "▸" : "▾",
-  );
-  toggle.addEventListener("click", () => {
-    liveLogCollapsed = !liveLogCollapsed;
-    pre.hidden = liveLogCollapsed;
-    toggle.textContent = liveLogCollapsed ? "▸" : "▾";
-    toggle.setAttribute("aria-expanded", String(!liveLogCollapsed));
-    toggle.title = liveLogCollapsed ? "expand live log" : "collapse live log";
-  });
-  const liveAgent = liveNode.payload.data && liveNode.payload.data.agent;
-  const header = el(
-    "div",
-    { class: "rebuild-live-log-header" },
-    toggle,
-    " ",
-    el("span", { class: "rebuild-live-log-title" }, "live build log — "),
-    // Label the specific node's agent, not the whole group's agent set.
-    el("code", { class: "rqe-agent" }, liveAgent || ""),
-    " ",
-    el("span", { class: "rqe-kind" }, liveNode.payload.label),
-    " ",
-    badge,
-    " ",
-    el(
-      "a",
-      {
-        class: "rebuild-live-log-raw",
-        href: "/api/build-log/" + liveNode.id + "/raw",
-        download: "build-log-" + liveNode.id + ".txt",
-      },
-      "↓ raw",
-    ),
-  );
-  root.append(header, pre);
-
-  // Start polling.
-  fetchAndRenderLiveLog(liveNode.id, pre);
-  liveLogPollTimer = setInterval(
-    () => fetchAndRenderLiveLog(liveNode.id, pre),
-    2000,
-  );
-}
-
-// ─── BUILD L0GS tab ───────────────────────────────────────────────────────────
-// All-agents build log history with expand-to-detail. Live builds stream in
-// real time. Lazy-loaded on first tab activation; auto-refreshes (debounced
-// 2s) when rebuild_queue_changed fires while the BUILD L0GS tab is active.
-// Deep-link: ?id=N#buildlogs auto-expands the target row.
-
-let buildLogsLoaded = false;
-
-function fmtTs(unixSecs) {
-  if (!unixSecs) return "";
-  const age = Math.floor(Date.now() / 1000) - unixSecs;
-  return fmtAgeSecs(Math.max(0, age)) + " ago";
-}
-
-async function fetchBuild() {
-  const buildList = $("build-list");
-  if (!buildList) return;
-  buildList.replaceChildren();
-  buildList.append(el("p", { class: "meta" }, "loading…"));
-  try {
-    const resp = await fetch("/api/build-logs?limit=30");
-    if (!resp.ok) throw new Error("http " + resp.status);
-    const rows = await resp.json();
-    buildList.replaceChildren();
-    if (!rows || rows.length === 0) {
-      buildList.append(el("p", { class: "meta" }, "(no build logs yet)"));
-      return;
-    }
-    const ul = el("ul", { class: "build-logs-list" });
-    for (const h of rows) {
-      const li = el("li", {
-        class: "build-logs-item",
-        "data-log-id": String(h.id),
-      });
-      const live = !h.status;
-      const ok = h.status === "ok";
-      const statusClass = live
-        ? "hive-pill-sm badge-running"
-        : ok
-          ? "hive-pill-sm badge-ok"
-          : "hive-pill-sm badge-fail";
-      const statusLabel = live ? "live" : ok ? "ok" : "fail";
-      const age = h.finished_at
-        ? fmtTs(h.finished_at)
-        : live
-          ? ""
-          : fmtTs(h.started_at);
-      const runtime =
-        h.runtime_secs != null
-          ? el(
-              "span",
-              { class: "build-logs-runtime meta" },
-              fmtDuration(Math.max(0, h.runtime_secs)),
-            )
-          : live
-            ? el(
-                "span",
-                { class: "build-logs-runtime meta build-logs-live-dur" },
-                "…",
-              )
-            : el("span", { class: "build-logs-runtime meta" }, "");
-
-      let durTimer = null;
-      if (live && h.started_at) {
-        const updateDur = () => {
-          const elapsed = Math.floor(Date.now() / 1000) - h.started_at;
-          runtime.textContent = fmtDuration(Math.max(0, elapsed));
-        };
-        updateDur();
-        durTimer = setInterval(updateDur, 1000);
-      }
-
-      const rowBtn = el(
-        "button",
-        {
-          type: "button",
-          class: "build-logs-row-btn",
-          "aria-expanded": "false",
-        },
-        el("span", { class: statusClass }, statusLabel),
-        el("span", { class: "build-logs-agent" }, h.agent),
-        runtime,
-        el("span", { class: "build-logs-kind" }, h.kind),
-        el("span", { class: "build-logs-age meta" }, age),
-        el("span", { class: "build-logs-cmdline meta" }, h.cmdline),
-      );
-      const detail = el("div", { class: "build-logs-detail" });
-      detail.hidden = true;
-
-      let streamEs = null;
-      rowBtn.addEventListener("click", async () => {
-        const expanded = rowBtn.getAttribute("aria-expanded") === "true";
-        rowBtn.setAttribute("aria-expanded", String(!expanded));
-        detail.hidden = expanded;
-        if (expanded) {
-          if (streamEs) {
-            streamEs.close();
-            streamEs = null;
-          }
-          return;
-        }
-        if (detail.dataset.loaded) return;
-        detail.replaceChildren();
-        detail.append(
-          el(
-            "a",
-            {
-              href: "/api/build-logs/id/" + h.id + "/raw",
-              download: "build-log-" + h.id + ".txt",
-              class: "build-logs-dl",
-            },
-            "↓ download raw",
-          ),
-        );
-        if (live) {
-          const pre = el(
-            "pre",
-            { class: "build-logs-output build-logs-live" },
-            "",
-          );
-          const badge = el(
-            "span",
-            { class: "build-logs-live-badge hive-pill-sm badge-running" },
-            "live",
-          );
-          detail.append(badge, pre);
-
-          streamEs = openBuildLogStream(h.id, pre, {
-            onDone: (status) => {
-              if (durTimer) {
-                clearInterval(durTimer);
-                durTimer = null;
-              }
-              if (h.started_at) {
-                const elapsed = Math.floor(Date.now() / 1000) - h.started_at;
-                runtime.textContent = fmtDuration(Math.max(0, elapsed));
-              }
-              badge.className =
-                status === "ok"
-                  ? "hive-pill-sm badge-ok"
-                  : "hive-pill-sm badge-fail";
-              badge.textContent = status;
-              streamEs = null;
-              detail.dataset.loaded = "1";
-            },
-            onError: () => {
-              if (durTimer) {
-                clearInterval(durTimer);
-                durTimer = null;
-              }
-              badge.textContent = "stream error";
-              badge.className = "hive-pill-sm badge-fail";
-              streamEs = null;
-            },
-          });
-        } else {
-          const pre = el("pre", { class: "build-logs-output" }, "fetching…");
-          detail.append(pre);
-          try {
-            const r2 = await fetch("/api/build-logs/id/" + h.id);
-            if (!r2.ok) {
-              pre.textContent = "error " + r2.status;
-            } else {
-              const full = await r2.json();
-              const out = [full.stdout, full.stderr]
-                .filter(Boolean)
-                .join("\n--- stderr ---\n");
-              pre.textContent = out || "(empty)";
-            }
-            detail.dataset.loaded = "1";
-          } catch (err) {
-            pre.textContent = "fetch failed: " + err;
-          }
-        }
-      });
-      li.append(rowBtn, detail);
-      ul.append(li);
-    }
-    buildList.append(ul);
-    // Deep-link: ?id=N auto-expands the target row.
-    const deepId = new URLSearchParams(location.search).get("id");
-    if (deepId) {
-      const target = ul.querySelector('[data-log-id="' + deepId + '"]');
-      if (target) {
-        const btn = target.querySelector(".build-logs-row-btn");
-        if (btn) {
-          btn.click();
-          target.scrollIntoView({ behavior: "smooth", block: "start" });
-        }
-      }
-    }
-  } catch (err) {
-    buildList.replaceChildren();
-    buildList.append(el("p", { class: "meta" }, "fetch failed: " + err));
-  }
-}
-
 // ─── entry points for tabs.js ─────────────────────────────────────────────────
 // Everything below is called by tabs.js, which owns the tab strip, the
 // `/api/state` snapshot and the dashboard event stream.
 
-/** Mount the rebuild queue and wire the build-log refresh button. Called
+/** Mount the rebuild queue. Called once, after the tab strip exists. The queue
- *  once, after the tab strip exists. The queue self-fetches on mount
+ *  self-fetches on mount (JobqGraph's own effect). */
- *  (JobqGraph's own effect). */
 export function initBuilds() {
-  const refresh = $("build-refresh");
-  if (refresh) refresh.addEventListener("click", fetchBuild);
   mountRebuildQueue();
 }
 
-/** A tab was shown: BUILD L0GS loads its list the first time. */
-export function onBuildsTabShown(tab) {
-  if (tab === "buildlogs" && !buildLogsLoaded) {
-    buildLogsLoaded = true;
-    fetchBuild();
-  }
-}
-
-let buildRefreshTimer = null;
-
 /** `rebuild_queue_changed`: a payload-less refetch trigger — `JobqGraph`
  *  owns the actual fetch. */
 export function onRebuildQueueChanged() {
   jobqGraphToken += 1;
   renderRebuildQueue();
-  // Auto-refresh the build log list while BUILD L0GS is the active tab.
-  if (document.body.dataset.activeTab === "buildlogs") {
-    if (buildRefreshTimer) clearTimeout(buildRefreshTimer);
-    buildRefreshTimer = setTimeout(fetchBuild, 2000);
-  }
 }

frontend/packages/dashboard/src/common.js

@@ -54,7 +54,7 @@ export const form = (
 // `asyncBtn` live in `@hive/shared/forms.js`, not here — both the
 // dashboard and the per-agent UI import them directly from there.
 
-// `truncate`, `fmtAgo`, `fmtElapsed`, `fmtDuration` + the `paintAtomic`
+// `truncate`, `fmtAgo`, `fmtElapsed` + the `paintAtomic`
 // render helper live in the dashboard-internal `./util.js`, not here —
 // their phrasing ("X running", "X ago") is dashboard-specific, so they
 // stay out of the cross-page `common.js` but are shared across the
@@ -287,58 +287,6 @@ export function openStream(url) {
   return target;
 }
 
-// Stream a build log into a <pre>, returning the EventSource. Used by the
-// BUILD L0GS tab. Appends `stdout_append` then
-// `stderr_append` (one `--- stderr ---` separator) frames from
-// `GET /api/build-logs/id/{id}/stream`; auto-scrolls to the bottom unless the operator scrolled up; on the terminal `done` frame
-// closes the stream and calls `onDone(status)`; on a non-transient error
-// closes and calls `onError()`. The backend replays accumulated output on each
-// (re)connect, so a CONNECTING reconnect resets the <pre> to avoid doubling.
-export function openBuildLogStream(id, pre, { onDone, onError } = {}) {
-  let atBottom = true;
-  pre.addEventListener("scroll", () => {
-    atBottom = pre.scrollHeight - pre.scrollTop - pre.clientHeight < 40;
-  });
-  let stderrSeen = false;
-  const es = new EventSource("/api/build-logs/id/" + id + "/stream");
-  es.onmessage = (e) => {
-    let frame;
-    try {
-      frame = JSON.parse(e.data);
-    } catch {
-      return;
-    }
-    if (frame.stdout_append) {
-      pre.textContent += frame.stdout_append;
-      if (atBottom) pre.scrollTop = pre.scrollHeight;
-    }
-    if (frame.stderr_append) {
-      if (!stderrSeen) {
-        pre.textContent += "\n--- stderr ---\n";
-        stderrSeen = true;
-      }
-      pre.textContent += frame.stderr_append;
-      if (atBottom) pre.scrollTop = pre.scrollHeight;
-    }
-    if (frame.done) {
-      es.close();
-      if (onDone) onDone(frame.status || "done");
-    }
-  };
-  es.onerror = () => {
-    // CONNECTING = the browser is auto-reconnecting; the stream replays from
-    // the start, so clear the <pre> to avoid duplicated output and wait.
-    if (es.readyState === EventSource.CONNECTING) {
-      pre.textContent = "";
-      stderrSeen = false;
-      return;
-    }
-    es.close();
-    if (onError) onError();
-  };
-  return es;
-}
-
 // ─── sticky top region ───────────────────────────────────────────────
 // One sticky container wrapping the page's chrome (tab bar / page
 // header), built once by wrapping the existing chrome element. A page

frontend/packages/dashboard/src/dashboard.css

@@ -604,120 +604,3 @@ body.dashboard-shell.has-selection {
 /* ST4TS moved to its own page (`/stats.html`): the
    window selector / summary chips / bars live in stats.css, and the
    shared `.hive-stats-table` moved to common.css. */
-
-/* ─── build tabs (builds.js) ────────────────────────────────────────
-   R3BU1LD QU3U3 is styled by system-sections.css and
-   jobq-graph.css; the BUILD L0GS list rules are below. */
-
-.logs-toolbar {
-  display: flex;
-  gap: 0.6em;
-  align-items: center;
-  margin-bottom: 0.9em;
-  flex-wrap: wrap;
-}
-
-/* ─── build-log list ──────────────────────────────────────────────
-   Scrollable list of log header rows; clicking a row expands full
-   stdout+stderr inline. */
-.build-logs-list {
-  list-style: none;
-  padding: 0;
-  margin: 0;
-  overflow-y: auto;
-  flex: 1 1 0;
-  min-height: 0;
-}
-.build-logs-item {
-  border-bottom: 1px solid var(--border);
-  padding: 0.15em 0;
-}
-.build-logs-row-btn {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 0.4em;
-  align-items: baseline;
-  width: 100%;
-  background: none;
-  border: none;
-  color: var(--fg);
-  font-family: inherit;
-  font-size: 0.85em;
-  text-align: left;
-  padding: 0.25em 0.4em;
-  cursor: pointer;
-  border-radius: 3px;
-}
-.build-logs-row-btn:hover {
-  background: var(--bg-elev);
-}
-.build-logs-kind {
-  font-weight: 600;
-}
-.build-logs-age {
-  font-size: 0.88em;
-}
-.build-logs-cmdline {
-  color: var(--muted);
-  font-size: 0.82em;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  max-width: 40em;
-}
-.build-logs-detail {
-  padding: 0 0.4em 0.4em;
-}
-.build-logs-output {
-  margin: 0.3em 0 0;
-  padding: 0.4em 0.6em;
-  background: var(--crust);
-  color: var(--fg);
-  border: 1px solid var(--purple-dim);
-  font-size: 0.82em;
-  line-height: 1.4;
-  white-space: pre-wrap;
-  word-break: break-word;
-  overflow-x: auto;
-  max-height: 30em;
-  overflow-y: auto;
-}
-.build-logs-dl {
-  color: var(--muted);
-  font-size: 0.8em;
-  text-decoration: none;
-  border: 1px solid var(--purple-dim);
-  padding: 0.1em 0.4em;
-  border-radius: 2px;
-  margin-top: 0.3em;
-  display: none;
-}
-.build-logs-dl:not([hidden]) {
-  display: inline-block;
-}
-.build-logs-dl:hover {
-  color: var(--fg);
-  border-color: var(--purple-dim);
-}
-
-.build-logs-live-badge {
-  margin-bottom: 0.4em;
-}
-
-@keyframes live-pulse {
-  0%,
-  100% {
-    opacity: 1;
-  }
-  50% {
-    opacity: 0.45;
-  }
-}
-.build-logs-live-badge.badge-running {
-  animation: live-pulse 1.4s ease-in-out infinite;
-}
-
-.build-logs-runtime {
-  font-size: 0.85em;
-  color: var(--muted);
-}

frontend/packages/dashboard/src/index.html

@@ -42,16 +42,6 @@
           <span class="tab-label">◆ R3BU1LD QU3U3 ◆</span>
         </a>
 
-        <a
-          class="tab"
-          id="tab-buildlogs"
-          href="#buildlogs"
-          role="tab"
-          aria-controls="tab-pane-buildlogs"
-          data-tab="buildlogs"
-        >
-          <span class="tab-label">◆ BUILD L0GS ◆</span>
-        </a>
         <a
           class="tab"
           id="tab-kept"
@@ -137,35 +127,6 @@
           <div id="rebuild-queue-section">
             <p class="meta">loading…</p>
           </div>
-          <!-- Live build log of the currently-running rebuild (one runs at a
-           time). Managed by renderRebuildLiveLog in builds.js, separate from
-           rebuild-queue-section so the queue's row re-render never disturbs
-           the open poll. -->
-          <div id="rebuild-live-log" class="rebuild-live-log" hidden></div>
-        </section>
-
-        <!-- BUILD L0GS: all-agents build log history. Click a row to expand
-         stdout + stderr. Live builds stream in real time. Lazy-loaded the
-         first time the tab is shown; auto-refreshes when
-         rebuild_queue_changed fires. Deep-link: ?id=N#buildlogs. -->
-        <section
-          class="tab-pane"
-          id="tab-pane-buildlogs"
-          data-tab-pane="buildlogs"
-          hidden
-          role="tabpanel"
-          aria-labelledby="tab-buildlogs"
-        >
-          <p class="meta">
-            all-agents build log history. click a row to expand stdout + stderr.
-            live builds stream in real time.
-          </p>
-          <div class="logs-toolbar">
-            <button type="button" class="btn btn-restart" id="build-refresh">
-              ↻ refresh
-            </button>
-          </div>
-          <div id="build-list"><p class="meta">loading…</p></div>
         </section>
 
         <!-- K3PT ST4T3: kept state from agents whose container is absent,

frontend/packages/dashboard/src/system-sections.css

@@ -27,80 +27,6 @@
   color: var(--amber);
   font-weight: bold;
 }
-/* ─── running-rebuild live log (renderRebuildLiveLog in builds.js) ──────────
-   Streams the currently-running rebuild's build log inline under the queue.
-   Hidden (native `hidden` attr) when nothing is building. Used on the
-   dashboard's R3BU1LD QU3U3 tab. */
-.rebuild-live-log {
-  margin-top: 0.8em;
-  border: 1px solid var(--purple-dim);
-  border-radius: 4px;
-  background: color-mix(in srgb, var(--crust) 70%, transparent);
-}
-.rebuild-live-log-header {
-  display: flex;
-  align-items: center;
-  gap: 0.4em;
-  padding: 0.4em 0.6em;
-  font-size: 0.85em;
-  border-bottom: 1px solid var(--border);
-}
-.rebuild-live-log-toggle {
-  background: transparent;
-  border: 0;
-  color: var(--muted);
-  cursor: pointer;
-  font-family: inherit;
-  font-size: 1em;
-  padding: 0 0.2em;
-}
-.rebuild-live-log-toggle:hover {
-  color: var(--fg);
-}
-.rebuild-live-log-title {
-  color: var(--muted);
-}
-.rebuild-live-log-raw {
-  margin-left: auto;
-  color: var(--purple);
-  text-decoration: none;
-  font-size: 0.9em;
-}
-.rebuild-live-log-raw:hover {
-  text-decoration: underline;
-}
-.rebuild-live-log-badge {
-  font-size: 0.75em;
-  font-weight: bold;
-  padding: 0.05em 0.5em;
-  border-radius: 999px;
-  letter-spacing: 0.05em;
-}
-.rebuild-live-log-badge.rll-running {
-  color: var(--amber);
-  background: color-mix(in srgb, var(--amber) 18%, transparent);
-}
-.rebuild-live-log-badge.rll-ok {
-  color: var(--green);
-  background: color-mix(in srgb, var(--green) 18%, transparent);
-}
-.rebuild-live-log-badge.rll-fail {
-  color: var(--red);
-  background: color-mix(in srgb, var(--red) 18%, transparent);
-}
-.rebuild-live-log-output {
-  margin: 0;
-  padding: 0.5em 0.7em;
-  max-height: 22em;
-  overflow-y: auto;
-  white-space: pre-wrap;
-  word-break: break-word;
-  font-family:
-    "JetBrains Mono", "Fira Code", "Cascadia Code", "Source Code Pro", monospace;
-  font-size: 0.8em;
-  line-height: 1.4;
-  color: var(--fg);
-}
 
 /* Remove the now-dead `.rqe-step` rule (the `step` sub-step label was
    retired from the wire in `feat(job_queue): retire the now-off-wire step

frontend/packages/dashboard/src/tabs.js

@@ -24,11 +24,7 @@ import {
   renderContainers,
   renderSelectionBar,
 } from "./agents.js";
-import {
+import { initBuilds, onRebuildQueueChanged } from "./builds.js";
-  initBuilds,
-  onBuildsTabShown,
-  onRebuildQueueChanged,
-} from "./builds.js";
 import {
   applyTombstonesChanged,
   renderKept,
@@ -260,7 +256,7 @@ import { renderUserMenu } from "./user-menu.js";
   })();
 
   // ─── tab routing ───────────────────────────────────────────────────────
-  // Hash-based: `#agents` / `#rebuild` / `#buildlogs` / `#kept`
+  // Hash-based: `#agents` / `#rebuild` / `#kept`
   // activate the matching pane on the dashboard. Empty
   // hash defaults to 4G3NTS. ST4TS is NOT a tab — it is a separate page
   // (`/stats.html`) reached from the pages menu (links-menu.js). Tab routing
@@ -276,7 +272,6 @@ import { renderUserMenu } from "./user-menu.js";
     // visibility (bar only belongs on 4G3NTS where agent cards live).
     document.body.dataset.activeTab = target;
     renderSelectionBar(Array.from(containersState.values()));
-    onBuildsTabShown(target);
   }
 
   // Wire the shared tab strip now that activateTab + the lazy-load fns it

frontend/packages/dashboard/src/util.js

@@ -54,16 +54,3 @@ export function fmtElapsed(secs) {
     "m running"
   );
 }
-
-// Compact duration label, two units deep ("1h 5m", "2d 3h").
-export function fmtDuration(secs) {
-  if (secs < 60) return secs + "s";
-  if (secs < 3600) return Math.floor(secs / 60) + "m " + (secs % 60) + "s";
-  if (secs < 86400)
-    return (
-      Math.floor(secs / 3600) + "h " + Math.floor((secs % 3600) / 60) + "m"
-    );
-  return (
-    Math.floor(secs / 86400) + "d " + Math.floor((secs % 86400) / 3600) + "h"
-  );
-}