Cookbook UI: Ollama browser, advanced serve fold, API tokens form, diagnosis toolbar, polish

Surface a lot of accumulated cookbook + UI work as a single non-agent
commit so the agent rework lands cleanly.

Highlights:
- Ollama as a first-class backend in the Cookbook:
  * Download input accepts ollama-style names (name:tag) → backend=ollama
  * /api/cookbook/ollama/library (cached scrape of ollama.com + curated
    fallback so classic models like qwen2.5 stay reachable)
  * "Browse Ollama library" toggle below Download with size chips
  * Engine=Ollama in hwfit toolbar merges the Ollama library into the
    main scan list as per-tag rows with the same Fit/Param/Quant/VRAM
    columns; click → fills Download input
- API Tokens form added to Integrations panel (matching wired
  loadTokens()/initTokenForm() that had no HTML)
- Serve panel polish: Advanced fold tightening (-8px nudges on vLLM
  checks, Extra args, Spec row), n_cpu_moe + Split Mode controls
  pulled up 8px to align with the row's checkboxes, GGUF File dropdown
  exposed for Ollama backend, GPU re-render on Edit serve restore,
  _forceBackend flag so saved serveState wins over backend detection,
  cookbook:servers-changed CustomEvent so panels don't need refresh
- Models page redesign: Add Models row (URL + hidden API key reveal +
  Type select + Scan/Ollama/Key/Test/Add icon buttons), Probe All +
  Clear-offline buttons in Added Models toolbar, offline-pill removed
  (opacity already conveys state), Engine dropdown gains Ollama option
- _ping_endpoint probes /v1/models then base, accepts 4xx as
  reachable (vLLM returns 404 on bare /v1, fully working endpoints
  were showing offline)
- Diagnosis card: × dismiss + Copy bundle buttons restored on the
  serve error feedback card
- Orphan tmux sweep re-enabled behind a 60s rate-limit + background
  Thread (off the main event loop) so dead serves get discovered
- cookbook_routes auto-register watchdog: drops the endpoint if the
  serve session exits non-zero within the first ~3min
- ollama-rocm sidecar awareness in download wrapper (`docker exec
  ollama-rocm ollama pull` when host ollama isn't installed)
- Skill extractor sets initial_status="published" when
  auto_approve_skills pref is on (audit demotes later)
- Skill list / model list / cookbook scan misc polish

static/js/cookbookSchedule.js

@@ -129,7 +129,7 @@ try { (function () {
           </label>
         </div>
 
-        <div class="hwfit-schedule-row">
+        <div class="hwfit-schedule-row hwfit-schedule-when-row">
           <label class="hwfit-schedule-field">
             <span>From</span>
             <input type="time" class="hwfit-sched-start cookbook-field-input" value="09:00" />
@@ -138,24 +138,24 @@ try { (function () {
             <span>Until</span>
             <input type="time" class="hwfit-sched-end cookbook-field-input" value="17:00" />
           </label>
-        </div>
-
-        <div class="hwfit-schedule-row hwfit-schedule-days-row">
-          <span class="hwfit-schedule-label">Days</span>
-          <div class="hwfit-sched-days">
-            ${DAYS.map(d => `
-              <button type="button" class="hwfit-sched-day-chip${WEEKDAYS.has(d.k) ? " is-on" : ""}" data-day="${d.k}">${d.l}</button>
-            `).join("")}
+          <label class="hwfit-schedule-field hwfit-schedule-days-field">
+            <span>Days</span>
+            <div class="hwfit-sched-days">
+              ${DAYS.map(d => `
+                <button type="button" class="hwfit-sched-day-chip${WEEKDAYS.has(d.k) ? " is-on" : ""}" data-day="${d.k}">${d.l}</button>
+              `).join("")}
+            </div>
+          </label>
+          <div class="hwfit-schedule-actions-inline">
+            <button type="button" class="cookbook-btn hwfit-sched-cancel" title="Cancel">
+              <svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-1px;margin-right:5px;flex-shrink:0;"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
+              <span>Cancel</span>
+            </button>
+            <button type="button" class="cookbook-btn hwfit-sched-save" title="Save schedule" aria-label="Save schedule">
+              <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-1px;margin-right:5px;flex-shrink:0;"><rect x="3" y="4" width="18" height="18" rx="2"/><line x1="16" y1="2" x2="16" y2="6"/><line x1="8" y1="2" x2="8" y2="6"/><line x1="3" y1="10" x2="21" y2="10"/></svg>
+              <span>Save</span>
+            </button>
           </div>
-          <span class="hwfit-schedule-actions-spacer"></span>
-          <button type="button" class="cookbook-btn hwfit-sched-cancel" title="Cancel">
-            <svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-1px;margin-right:5px;flex-shrink:0;"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
-            <span>Cancel</span>
-          </button>
-          <button type="button" class="cookbook-btn hwfit-sched-save" title="Save schedule" aria-label="Save schedule">
-            <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-1px;margin-right:5px;flex-shrink:0;"><rect x="3" y="4" width="18" height="18" rx="2"/><line x1="16" y1="2" x2="16" y2="6"/><line x1="8" y1="2" x2="8" y2="6"/><line x1="3" y1="10" x2="21" y2="10"/></svg>
-            <span>Save</span>
-          </button>
         </div>
 
         <div class="hwfit-sched-err"></div>