diff --git a/internal/control/ui.html b/internal/control/ui.html
index 93e004e..b54efcc 100644
--- a/internal/control/ui.html
+++ b/internal/control/ui.html
@@ -20,7 +20,7 @@
 html{color-scheme:light}
 body{background:linear-gradient(180deg,#fbfcfe 0%,var(--bg) 100%);color:var(--text);font-family:var(--display);font-size:14px;line-height:1.5;min-height:100vh;overflow-x:hidden}
 button,input,select{font:inherit}button{user-select:none}
-.app{max-width:1200px;margin:0 auto;padding:24px}
+.app{max-width:1560px;margin:0 auto;padding:24px}
 /* Header */
 .header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:4px 0 20px;border-bottom:1px solid var(--border);margin-bottom:20px}
 .header-main{display:flex;flex-direction:column;gap:8px}
@@ -46,7 +46,7 @@ button,input,select{font:inherit}button{user-select:none}
 .flow-banner.err{border-color:rgba(176,48,48,.32);background:var(--red-soft)}
 .flow-banner-title{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
 .flow-banner-text{font-size:12px;color:var(--text-dim)}
-.flow-board{padding:16px;display:flex;flex-direction:column;gap:16px}
+.flow-board{padding:18px 20px;display:flex;flex-direction:column;gap:18px}
 .flow-master{display:grid;grid-template-columns:minmax(260px,1.2fr) minmax(0,2.2fr);gap:12px;align-items:stretch}
 .flow-master-hero{padding:16px;border:1px solid var(--border-strong);border-radius:12px;background:linear-gradient(180deg,#fff 0%,#f5f8fc 100%);box-shadow:0 14px 28px rgba(15,23,42,.09)}
 .flow-master-label{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:8px}
@@ -61,12 +61,14 @@ button,input,select{font:inherit}button{user-select:none}
 .flow-summary-label{font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:6px}
 .flow-summary-value{font-size:16px;font-weight:700}
 .flow-summary-value.compact{font-size:14px;line-height:1.3}
-.flow-chain{display:grid;grid-template-columns:repeat(8,minmax(120px,1fr));gap:16px;align-items:stretch}
-.flow-node{position:relative;display:flex;flex-direction:column;gap:8px;min-height:136px;padding:14px 14px 16px;border:1px solid var(--border);border-radius:12px;background:linear-gradient(180deg,#ffffff 0%, #f7f9fc 100%);box-shadow:0 10px 26px rgba(15,23,42,.08);cursor:pointer;transition:border-color .16s,transform .16s,box-shadow .16s}
+.flow-chain{display:grid;grid-template-columns:repeat(8,minmax(140px,1fr));gap:18px;align-items:stretch}
+.flow-node{position:relative;display:flex;flex-direction:column;gap:7px;min-height:112px;padding:12px 12px 14px;border:1px solid var(--border);border-radius:12px;background:linear-gradient(180deg,#ffffff 0%, #f7f9fc 100%);box-shadow:0 10px 26px rgba(15,23,42,.08);cursor:pointer;transition:border-color .16s,transform .16s,box-shadow .16s}
 .flow-node::after{content:'';position:absolute;top:50%;right:-17px;width:18px;height:2px;background:linear-gradient(90deg,var(--border-strong),rgba(188,197,206,.2));transform:translateY(-50%)}
 .flow-node:last-child::after{display:none}
 .flow-node:hover{transform:translateY(-1px);border-color:var(--border-strong);box-shadow:0 14px 30px rgba(15,23,42,.11)}
 .flow-node.selected{outline:2px solid rgba(31,77,157,.22);outline-offset:0;box-shadow:0 0 0 4px rgba(31,77,157,.06),0 14px 30px rgba(15,23,42,.12)}
+.flow-node.terminal{min-height:124px;border-width:2px;box-shadow:0 14px 32px rgba(15,23,42,.12)}
+.flow-node.terminal::after{display:none}
 .flow-node.good{border-color:rgba(13,148,74,.3);background:linear-gradient(180deg,#fff 0%, rgba(13,148,74,.045) 100%)}
 .flow-node.warn{border-color:rgba(183,121,31,.32);background:linear-gradient(180deg,#fff 0%, rgba(183,121,31,.06) 100%)}
 .flow-node.err{border-color:rgba(176,48,48,.34);background:linear-gradient(180deg,#fff 0%, rgba(176,48,48,.07) 100%)}
@@ -79,9 +81,8 @@ button,input,select{font:inherit}button{user-select:none}
 .flow-node.err .flow-node-state{background:var(--red);box-shadow:0 0 0 3px rgba(176,48,48,.14)}
 .flow-node.idle .flow-node-state{background:#9aa5b1;box-shadow:0 0 0 3px rgba(154,165,177,.15)}
 .flow-node-title{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
-.flow-node-sub{font-size:12px;color:var(--text-dim);min-height:34px;font-weight:600}
-.flow-node-detail{font-size:11px;color:var(--text-muted);line-height:1.35}
-.flow-node-actions{margin-top:auto;padding-top:8px;border-top:1px solid rgba(188,197,206,.45);font-size:10px;color:var(--accent);text-transform:uppercase;letter-spacing:.08em}
+.flow-node-sub{font-size:13px;color:var(--text);min-height:0;font-weight:700;line-height:1.25}
+.flow-node-detail{font-size:10px;color:var(--text-muted);line-height:1.3;text-transform:uppercase;letter-spacing:.05em}
 .flow-bottom{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
 .flow-tooltip{position:fixed;z-index:1500;display:none;max-width:280px;padding:12px;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.98);box-shadow:0 14px 34px rgba(15,23,42,.16);pointer-events:none}
 .flow-tooltip.show{display:block}
@@ -283,7 +284,7 @@ input.input-error{border-color:var(--red);box-shadow:0 0 0 3px rgba(176,48,48,.1
 .toast.ok{background:var(--green);color:var(--bg)}.toast.err{background:var(--accent);color:#fff}
 .toast.warn{background:var(--amber);color:#141414}.toast.info{background:var(--text-dim);color:#fff}
 /* Responsive */
-@media(max-width:980px){.tab-columns.two{grid-template-columns:1fr}.tx-bar{grid-template-columns:1fr}.tx-state-wrap{align-items:flex-start}.status-hint{text-align:left}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.signal-grid{grid-template-columns:1fr}.flow-master{grid-template-columns:1fr}.flow-topbar,.flow-bottom{grid-template-columns:repeat(2,minmax(0,1fr))}.flow-chain{grid-template-columns:repeat(4,minmax(140px,1fr))}}
+@media(max-width:980px){.app{max-width:100%;padding:14px}.tab-columns.two{grid-template-columns:1fr}.tx-bar{grid-template-columns:1fr}.tx-state-wrap{align-items:flex-start}.status-hint{text-align:left}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.signal-grid{grid-template-columns:1fr}.flow-master{grid-template-columns:1fr}.flow-topbar,.flow-bottom{grid-template-columns:repeat(2,minmax(0,1fr))}.flow-chain{grid-template-columns:repeat(4,minmax(140px,1fr))}}
 @media(max-width:640px){.app{padding:12px}.header{flex-direction:column;gap:10px}.header h1{font-size:22px}.badge{width:100%;justify-content:space-between}.badge strong{max-width:52%;overflow:hidden;text-overflow:ellipsis}.quick-grid{grid-template-columns:1fr 1fr;gap:8px}.ctrl-row{flex-direction:column;align-items:stretch}.ctrl-label-wrap{min-width:auto}.ctrl-input{flex-wrap:wrap}.ingest-grid{grid-template-columns:1fr}input[type="number"]{width:100%;text-align:left}.actions-row,.tx-actions{flex-direction:column}.tx-btn,.ghost-btn,.apply-btn,.preset-btn,.danger-btn{width:100%}.freq-display{font-size:31px}.flow-master,.flow-topbar,.flow-bottom,.flow-chain{grid-template-columns:1fr}}
 </style>
 </head>
@@ -994,23 +995,24 @@ function normState(s){return(typeof s==='string'?s.trim().toLowerCase():'')||'id
 function stateSev(s){switch(normState(s)){case 'running':return'ok';case 'degraded':case 'muted':return'warn';case 'faulted':return'err';default:return'info';}}
 function stateClass(s){switch(normState(s)){case 'faulted':return'err';case 'muted':case 'degraded':case 'prebuffering':case 'arming':case 'stopping':case 'idle':return'warn';default:return'good';}}
 function flowSeverityFromRuntime(){const rt=S.server.runtime||{},eng=rt.engine||{},ing=rt.ingest||{},src=ing.source||{},ir=ing.runtime||{};if(normState(eng.state)==='faulted')return{sev:'err',title:'Fault',text:eng.lastError||eng.runtimeAlert||'TX faulted'};if(eng.runtimeAlert)return{sev:'warn',title:'Runtime warning',text:String(eng.runtimeAlert)};if(ir.writeBlocked)return{sev:'err',title:'Ingest blocked',text:'Ingest runtime is write-blocked'};if(src.state&&String(src.state).toLowerCase()==='reconnecting')return{sev:'warn',title:'Source reconnecting',text:'Input source is reconnecting'};return null;}
-function flowNodeData(){const cfg=S.server.config||{},rt=S.server.runtime||{},eng=rt.engine||{},ing=rt.ingest||{},src=ing.source||{},ir=ing.runtime||{},active=ing.active||{},rds=cfg.rds||{},fm=cfg.fm||{},audio=cfg.audio||{};const txState=normState(eng.state);const queueHealth=String(eng.queue?.health||'').toLowerCase();const sourceKind=String(active.kind||cfg.ingest?.kind||'none');const sourceState=String(src.state||'').toLowerCase();
+function flowNodeData(){const cfg=S.server.config||{},rt=S.server.runtime||{},eng=rt.engine||{},ing=rt.ingest||{},src=ing.source||{},ir=ing.runtime||{},active=ing.active||{},rds=cfg.rds||{},fm=cfg.fm||{},audio=cfg.audio||{};const txState=normState(eng.state);const queueHealth=String(eng.queue?.health||'').toLowerCase();const sourceKind=String(active.kind||cfg.ingest?.kind||'none');const sourceState=String(src.state||'').toLowerCase();const sourceHost=(()=>{const ep=String(active.origin?.endpoint||'');try{return ep?new URL(ep).host:active.origin?.streamName||'--';}catch{return active.origin?.streamName||ep||'--';}})();
   return {
-    source:{state:sourceKind==='none'?'idle':(sourceState==='reconnecting'?'warn':(src.connected===false?'err':'good')),sub:sourceKind,detail:(active.origin?.endpoint||active.origin?.streamName||'No source configured'),lines:[`Kind: ${sourceKind}`,`Origin: ${active.origin?.endpoint||active.origin?.streamName||'--'}`,`State: ${src.state||'idle'}`,`Reconnects: ${src.reconnects??0}`],applyMode:'reload'},
-    ingest:{state:ir.writeBlocked?'err':(String(ir.state||'').toLowerCase()==='degraded'||sourceState==='reconnecting'?'warn':(sourceKind==='none'?'idle':'good')),sub:ir.state||src.state||'idle',detail:joinParts([isFinite(Number(src.bufferedSeconds))?`${Number(src.bufferedSeconds).toFixed(2)}s buffered`:'',ir.prebuffering?'prebuffering':'']).trim()||'Buffer status unavailable',lines:[`Runtime: ${ir.state||'--'}`,`Buffered: ${isFinite(Number(src.bufferedSeconds))?Number(src.bufferedSeconds).toFixed(2)+'s':'--'}`,`Last chunk: ${ageFrom(ir.lastChunkAt||src.lastChunkAt)}`,`Write blocked: ${ir.writeBlocked?'yes':'no'}`],applyMode:'reload'},
-    audio:{state:audio.ToneAmplitude>0?'warn':(sourceKind==='none'?'idle':'good'),sub:`gain ${Number(audio.gain??0).toFixed(2)}`,detail:audio.toneAmplitude>0?`Tones active · ${audio.toneLeftHz}/${audio.toneRightHz} Hz`:'Tones off',lines:[`Gain: ${Number(audio.gain??0).toFixed(2)}`,`Tone L: ${audio.toneLeftHz??'--'} Hz`,`Tone R: ${audio.toneRightHz??'--'} Hz`,`Tone Amp: ${Number(audio.toneAmplitude??0).toFixed(2)}`],applyMode:'mixed'},
-    processing:{state:fm.bs412Enabled?'warn':'good',sub:fm.limiterEnabled?'Limiter on':'Limiter off',detail:`Pre-emphasis ${fm.preEmphasisTauUS||0} µs`,lines:[`Limiter: ${fm.limiterEnabled?'on':'off'}`,`Ceiling: ${Number(fm.limiterCeiling??0).toFixed(2)}`,`Pre-emphasis: ${fm.preEmphasisTauUS||0} µs`,`BS.412: ${fm.bs412Enabled?'on':'off'}`],applyMode:'mixed'},
-    stereo:{state:fm.stereoEnabled?'good':'idle',sub:fm.stereoEnabled?(fm.stereoMode||'DSB'):'mono',detail:`Pilot ${(Number(fm.pilotLevel??0)*100).toFixed(1)}%`,lines:[`Enabled: ${fm.stereoEnabled?'yes':'no'}`,`Mode: ${fm.stereoMode||'DSB'}`,`Pilot: ${(Number(fm.pilotLevel??0)*100).toFixed(1)}%`],applyMode:'live'},
-    rds:{state:rds.enabled?'good':'idle',sub:rds.enabled?`PS ${String(eng.activePS||rds.ps||'--')}`:'disabled',detail:String(eng.activeRadioText||rds.radioText||'No RadioText').slice(0,48),lines:[`Enabled: ${rds.enabled?'yes':'no'}`,`PI: ${rds.pi||'--'}`,`PTY: ${fmtPTY(rds.pty)}`,`PS: ${eng.activePS||rds.ps||'--'}`,`RT: ${eng.activeRadioText||rds.radioText||'--'}`],applyMode:'mixed'},
-    mpx:{state:queueHealth==='critical'?'err':(fm.bs412Enabled||fm.compositeClipper?.enabled?'warn':'good'),sub:`Pilot ${(Number(fm.pilotLevel??0)*100).toFixed(1)}% · RDS ${(Number(fm.rdsInjection??0)*100).toFixed(1)}%`,detail:`MPX gain ${Number(fm.mpxGain??1).toFixed(2)}`,lines:[`Pilot: ${(Number(fm.pilotLevel??0)*100).toFixed(1)}%`,`RDS inj: ${(Number(fm.rdsInjection??0)*100).toFixed(1)}%`,`MPX gain: ${Number(fm.mpxGain??1).toFixed(2)}`,`Clipper: ${fm.compositeClipper?.enabled?'on':'off'}`],applyMode:'mixed'},
+    source:{state:sourceKind==='none'?'idle':(sourceState==='reconnecting'?'warn':(src.connected===false?'err':'good')),sub:sourceKind.toUpperCase(),detail:(sourceKind==='none'?'No source':(src.connected===false?'Disconnected':'Connected')),lines:[`Kind: ${sourceKind}`,`Origin: ${active.origin?.endpoint||active.origin?.streamName||'--'}`,`State: ${src.state||'idle'}`,`Reconnects: ${src.reconnects??0}`],applyMode:'reload'},
+    ingest:{state:ir.writeBlocked?'err':(String(ir.state||'').toLowerCase()==='degraded'||sourceState==='reconnecting'?'warn':(sourceKind==='none'?'idle':'good')),sub:(ir.state||src.state||'idle').toUpperCase(),detail:joinParts([isFinite(Number(src.bufferedSeconds))?`${Number(src.bufferedSeconds).toFixed(1)} s buffer`:'',ir.prebuffering?'prebuffer':'']).trim()||'Stable',lines:[`Runtime: ${ir.state||'--'}`,`Buffered: ${isFinite(Number(src.bufferedSeconds))?Number(src.bufferedSeconds).toFixed(2)+'s':'--'}`,`Last chunk: ${ageFrom(ir.lastChunkAt||src.lastChunkAt)}`,`Write blocked: ${ir.writeBlocked?'yes':'no'}`],applyMode:'reload'},
+    audio:{state:audio.ToneAmplitude>0&&sourceKind==='none'?'warn':(sourceKind==='none'?'idle':'good'),sub:`Gain ${Number(audio.gain??0).toFixed(2)}`,detail:sourceKind!=='none'?'External program feed':(audio.toneAmplitude>0?'Tone generator armed':'No input source'),lines:[`Gain: ${Number(audio.gain??0).toFixed(2)}`,`Tone L: ${audio.toneLeftHz??'--'} Hz`,`Tone R: ${audio.toneRightHz??'--'} Hz`,`Tone Amp: ${Number(audio.toneAmplitude??0).toFixed(2)}`,`Source kind: ${sourceKind}`],applyMode:'mixed'},
+    processing:{state:'good',sub:fm.limiterEnabled?'Limiter ON':'Limiter OFF',detail:fm.bs412Enabled?`BS.412 active · ${Number(fm.bs412ThresholdDBr??0).toFixed(1)} dBr`:`Pre-emphasis ${fm.preEmphasisTauUS||0} µs`,lines:[`Limiter: ${fm.limiterEnabled?'on':'off'}`,`Ceiling: ${Number(fm.limiterCeiling??0).toFixed(2)}`,`Pre-emphasis: ${fm.preEmphasisTauUS||0} µs`,`BS.412: ${fm.bs412Enabled?'on':'off'}`,`Mode: ${fm.bs412Enabled?'compliance shaping active':'nominal processing path'}`],applyMode:'mixed'},
+    stereo:{state:fm.stereoEnabled?'good':'idle',sub:fm.stereoEnabled?(fm.stereoMode||'DSB'):'MONO',detail:`Pilot ${(Number(fm.pilotLevel??0)*100).toFixed(1)} %`,lines:[`Enabled: ${fm.stereoEnabled?'yes':'no'}`,`Mode: ${fm.stereoMode||'DSB'}`,`Pilot: ${(Number(fm.pilotLevel??0)*100).toFixed(1)}%`],applyMode:'live'},
+    rds:{state:rds.enabled?'good':'idle',sub:rds.enabled?String(eng.activePS||rds.ps||'--'):'DISABLED',detail:rds.enabled?(eng.activeRadioText?String(eng.activeRadioText).slice(0,28):'Radiotext active'):'No subcarrier data',lines:[`Enabled: ${rds.enabled?'yes':'no'}`,`PI: ${rds.pi||'--'}`,`PTY: ${fmtPTY(rds.pty)}`,`PS: ${eng.activePS||rds.ps||'--'}`,`RT: ${eng.activeRadioText||rds.radioText||'--'}`],applyMode:'mixed'},
+    mpx:{state:queueHealth==='critical'?'err':(queueHealth==='low'?'warn':'good'),sub:`Pilot ${(Number(fm.pilotLevel??0)*100).toFixed(1)}% / RDS ${(Number(fm.rdsInjection??0)*100).toFixed(1)}%`,detail:queueHealth==='critical'?'Queue critical':(queueHealth==='low'?'Queue low':(fm.compositeClipper?.enabled?'Composite clipper enabled':(fm.bs412Enabled?'BS.412 shaping active':`MPX gain ${Number(fm.mpxGain??1).toFixed(2)}`))),lines:[`Pilot: ${(Number(fm.pilotLevel??0)*100).toFixed(1)}%`,`RDS inj: ${(Number(fm.rdsInjection??0)*100).toFixed(1)}%`,`MPX gain: ${Number(fm.mpxGain??1).toFixed(2)}`,`Clipper: ${fm.compositeClipper?.enabled?'on':'off'}`,`Mode: ${queueHealth==='critical'?'queue health critical':(queueHealth==='low'?'queue health low':(fm.compositeClipper?.enabled?'clipper engaged':'nominal multiplex path'))}`],applyMode:'mixed'},
     tx:{state:txState==='running'?'good':(txState==='faulted'?'err':(txState==='idle'?'idle':'warn')),sub:isFinite(Number(eng.appliedFrequencyMHz))?`${Number(eng.appliedFrequencyMHz).toFixed(1)} MHz`:(isFinite(Number(fm.frequencyMHz))?`${Number(fm.frequencyMHz).toFixed(1)} MHz`:'--'),detail:String(eng.state||'idle').toUpperCase(),lines:[`State: ${String(eng.state||'idle').toUpperCase()}`,`Applied: ${isFinite(Number(eng.appliedFrequencyMHz))?Number(eng.appliedFrequencyMHz).toFixed(1)+' MHz':'--'}`,`Target: ${isFinite(Number(fm.frequencyMHz))?Number(fm.frequencyMHz).toFixed(1)+' MHz':'--'}`,`Queue: ${eng.queue?.health||'--'}`,`Underruns: ${eng.underruns??'--'}`],applyMode:'live'},
   };
 }
-function renderFlow(){const chain=$('flow-chain');if(!chain)return;const data=flowNodeData();chain.innerHTML=FLOW_NODES.map(node=>{const d=data[node.key]||{state:'idle',sub:'--',detail:'--'};const sel=S.flowSelected===node.key?' selected':'';return `<button type="button" class="flow-node ${d.state}${sel}" data-flow-node="${node.key}"><div class="flow-node-head"><div class="flow-node-icon">${node.icon}</div><div class="flow-node-state"></div></div><div class="flow-node-title">${node.label}</div><div class="flow-node-sub">${d.sub||'--'}</div><div class="flow-node-detail">${d.detail||'--'}</div><div class="flow-node-actions">Status • Details • Quick control</div></button>`;}).join('');
+function renderFlow(){const chain=$('flow-chain');if(!chain)return;const data=flowNodeData();chain.innerHTML=FLOW_NODES.map(node=>{const d=data[node.key]||{state:'idle',sub:'--',detail:'--'};const sel=S.flowSelected===node.key?' selected':'';const terminal=node.key==='tx'?' terminal':'';return `<button type="button" class="flow-node ${d.state}${sel}${terminal}" data-flow-node="${node.key}"><div class="flow-node-head"><div class="flow-node-icon">${node.icon}</div><div class="flow-node-state"></div></div><div class="flow-node-title">${node.label}</div><div class="flow-node-sub">${d.sub||'--'}</div><div class="flow-node-detail">${d.detail||'--'}</div></button>`;}).join('');
   chain.querySelectorAll('[data-flow-node]').forEach(el=>{const key=el.dataset.flowNode;el.addEventListener('mouseenter',e=>showFlowTooltip(key,e.currentTarget));el.addEventListener('mouseleave',hideFlowTooltip);el.addEventListener('focus',e=>showFlowTooltip(key,e.currentTarget));el.addEventListener('blur',hideFlowTooltip);el.addEventListener('click',()=>openFlowPopover(key,el));});
   const issue=flowSeverityFromRuntime();const banner=$('flow-banner');if(banner){if(issue){banner.className=`flow-banner show ${issue.sev}`;$('flow-banner-title').textContent=issue.title;$('flow-banner-text').textContent=issue.text;}else{banner.className='flow-banner';$('flow-banner-title').textContent='Status';$('flow-banner-text').textContent='No active issues.';}}
   const masterState=String((S.server.runtime?.engine?.state||'idle')).toUpperCase();setText('flow-master-state',masterState);const fms=$('flow-master-state');if(fms){fms.className=`flow-master-state ${stateClass(S.server.runtime?.engine?.state)}`;}setText('flow-master-sub',issue?issue.text:(masterState==='RUNNING'?'Transmission active and signal path healthy.':masterState==='IDLE'?'Transmitter idle. Configure and start when ready.':'Runtime state present; inspect flow modules for details.'));
-  setText('flow-top-applied',isFinite(Number(S.server.runtime?.engine?.appliedFrequencyMHz))?`${Number(S.server.runtime.engine.appliedFrequencyMHz).toFixed(1)} MHz`:'--');setText('flow-top-target',isFinite(Number(S.server.config?.fm?.frequencyMHz))?`${Number(S.server.config.fm.frequencyMHz).toFixed(1)} MHz`:'--');setText('flow-top-source',joinParts([String(S.server.runtime?.ingest?.active?.kind||S.server.config?.ingest?.kind||'none'),S.server.runtime?.ingest?.active?.origin?.streamName||S.server.runtime?.ingest?.active?.origin?.endpoint||''])||'--');setText('flow-top-alert',issue?issue.text:'None');setText('flow-bottom-queue',String(S.server.runtime?.engine?.queue?.health||'--'));setText('flow-bottom-ingest',String(S.server.runtime?.ingest?.runtime?.state||S.server.runtime?.ingest?.source?.state||'--'));setText('flow-bottom-age',fmtTime(Number(S.server.runtime?.engine?.runtimeStateDurationSeconds)));setText('flow-bottom-update',ageStr(Math.max(S.server.lastConfigAt||0,S.server.lastRuntimeAt||0)));renderFlowPopover();
+  const sourceSummary=(()=>{const kind=String(S.server.runtime?.ingest?.active?.kind||S.server.config?.ingest?.kind||'none');const endpoint=String(S.server.runtime?.ingest?.active?.origin?.endpoint||'');try{return joinParts([kind,new URL(endpoint).host]);}catch{return joinParts([kind,S.server.runtime?.ingest?.active?.origin?.streamName||'']);}})();
+  setText('flow-top-applied',isFinite(Number(S.server.runtime?.engine?.appliedFrequencyMHz))?`${Number(S.server.runtime.engine.appliedFrequencyMHz).toFixed(1)} MHz`:'--');setText('flow-top-target',isFinite(Number(S.server.config?.fm?.frequencyMHz))?`${Number(S.server.config.fm.frequencyMHz).toFixed(1)} MHz`:'--');setText('flow-top-source',sourceSummary||'--');setText('flow-top-alert',issue?issue.text:'None');setText('flow-bottom-queue',String(S.server.runtime?.engine?.queue?.health||'--').toUpperCase());setText('flow-bottom-ingest',String(S.server.runtime?.ingest?.runtime?.state||S.server.runtime?.ingest?.source?.state||'--').toUpperCase());setText('flow-bottom-age',fmtTime(Number(S.server.runtime?.engine?.runtimeStateDurationSeconds)));setText('flow-bottom-update',ageStr(Math.max(S.server.lastConfigAt||0,S.server.lastRuntimeAt||0)));renderFlowPopover();
 }
 function showFlowTooltip(key,anchor){const tip=$('flow-tooltip');if(!tip||S.flowSelected===key)return;const d=flowNodeData()[key];if(!d)return;tip.innerHTML=`<div class="flow-tooltip-title">${FLOW_NODES.find(n=>n.key===key)?.label||key}</div><div class="flow-tooltip-status">${String(d.state||'idle').toUpperCase()}</div><div class="flow-tooltip-lines">${(d.lines||[]).map(line=>`<div>${line}</div>`).join('')}</div>`;const r=anchor.getBoundingClientRect();tip.style.left=`${Math.min(window.innerWidth-300,Math.max(12,r.left + window.scrollX))}px`;tip.style.top=`${r.bottom + window.scrollY + 8}px`;tip.classList.add('show');}
 function hideFlowTooltip(){const tip=$('flow-tooltip');if(tip)tip.classList.remove('show');}