Fullfør oppgave 7.3: Voice memo — opptak-knapp i frontend

Legger til VoiceRecorder-komponent som bruker MediaRecorder API for
lydopptak i nettleseren. Opptaket lastes opp til CAS via eksisterende
uploadMedia-endepunkt, som automatisk trigger Whisper-transkripsjon.

Komponenten er integrert i:
- ChatInput: mikrofon-knapp mellom tekstfelt og send-knapp
- NodeEditor: mikrofon-knapp i verktøylinjen

Flyten: opptak → webm/opus blob → upload → CAS → whisper_transcribe-jobb.
Ingen backend-endringer nødvendig — hele transkripsjons-pipelinen fra
oppgave 7.2 gjenbrukes uendret.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/lib/components/ChatInput.svelte

@@ -1,10 +1,15 @@
 <script lang="ts">
+	import VoiceRecorder from './VoiceRecorder.svelte';
+
 	interface Props {
 		onsubmit: (content: string) => Promise<void>;
 		disabled?: boolean;
+		accessToken?: string;
+		/** Context node for voice memo attachment (e.g. communication node) */
+		contextId?: string;
 	}
 
-	let { onsubmit, disabled = false }: Props = $props();
+	let { onsubmit, disabled = false, accessToken, contextId }: Props = $props();
 
 	let content = $state('');
 	let submitting = $state(false);
@@ -62,6 +67,12 @@
 			<p class="absolute -top-6 left-0 text-xs text-red-600">{error}</p>
 		{/if}
 	</div>
+	<VoiceRecorder
+		{accessToken}
+		sourceId={contextId}
+		disabled={disabled || submitting}
+		onerror={(msg) => { error = msg; }}
+	/>
 	<button
 		onclick={handleSubmit}
 		disabled={isEmpty || submitting || disabled}

frontend/src/lib/components/NodeEditor.svelte

@@ -6,6 +6,7 @@
 	import Image from '@tiptap/extension-image';
 	import Placeholder from '@tiptap/extension-placeholder';
 	import { uploadMedia, casUrl } from '$lib/api';
+	import VoiceRecorder from './VoiceRecorder.svelte';
 
 	interface Props {
 		onsubmit: (data: { title: string; content: string; html: string }) => Promise<void>;
@@ -21,6 +22,7 @@
 	let submitting = $state(false);
 	let uploading = $state(0);
 	let error = $state('');
+	let voiceMemoInfo = $state('');
 
 	async function handleImageUpload(file: File): Promise<void> {
 		if (!accessToken) {
@@ -189,12 +191,24 @@
 		<p class="px-3 py-1 text-xs text-red-600">{error}</p>
 	{/if}
 
+	{#if voiceMemoInfo}
+		<p class="px-3 py-1 text-xs text-green-600">{voiceMemoInfo}</p>
+	{/if}
+
 	<div class="flex items-center justify-between border-t border-gray-100 px-3 py-2">
+		<div class="flex items-center gap-2">
 			<span class="text-xs text-gray-400">
 				{#if editor}
 					Markdown · Ctrl+B/I · Dra/lim bilder · Ctrl+Enter for å sende
 				{/if}
 			</span>
+			<VoiceRecorder
+				{accessToken}
+				disabled={disabled || submitting}
+				onerror={(msg) => { error = msg; }}
+				onrecorded={() => { voiceMemoInfo = 'Talenotat lastet opp — transkriberes i bakgrunnen'; setTimeout(() => { voiceMemoInfo = ''; }, 5000); }}
+			/>
+		</div>
 		<button
 			onclick={handleSubmit}
 			disabled={isEmpty || submitting || disabled || uploading > 0}

frontend/src/lib/components/VoiceRecorder.svelte

@@ -0,0 +1,191 @@
+<script lang="ts">
+	import { uploadMedia } from '$lib/api';
+
+	interface Props {
+		accessToken?: string;
+		/** Called when upload+transcription is triggered. Returns media_node_id. */
+		onrecorded?: (result: { media_node_id: string; cas_hash: string }) => void;
+		/** Called on error */
+		onerror?: (message: string) => void;
+		/** Optional context node (e.g. communication node) to attach media to */
+		sourceId?: string;
+		disabled?: boolean;
+	}
+
+	let { accessToken, onrecorded, onerror, sourceId, disabled = false }: Props = $props();
+
+	type RecordingState = 'idle' | 'recording' | 'uploading';
+
+	let recState: RecordingState = $state('idle');
+	let mediaRecorder: MediaRecorder | undefined = $state();
+	let stream: MediaStream | undefined = $state();
+	let chunks: Blob[] = [];
+	let duration = $state(0);
+	let durationInterval: ReturnType<typeof setInterval> | undefined;
+
+	function formatDuration(seconds: number): string {
+		const m = Math.floor(seconds / 60);
+		const s = seconds % 60;
+		return `${m}:${s.toString().padStart(2, '0')}`;
+	}
+
+	async function startRecording() {
+		if (!accessToken) {
+			onerror?.('Ikke innlogget — kan ikke ta opp lyd');
+			return;
+		}
+
+		try {
+			stream = await navigator.mediaDevices.getUserMedia({ audio: true });
+		} catch {
+			onerror?.('Ingen tilgang til mikrofon. Sjekk nettleserinnstillinger.');
+			return;
+		}
+
+		chunks = [];
+		duration = 0;
+
+		// Prefer webm/opus, fall back to whatever the browser supports
+		const mimeType = MediaRecorder.isTypeSupported('audio/webm;codecs=opus')
+			? 'audio/webm;codecs=opus'
+			: MediaRecorder.isTypeSupported('audio/webm')
+				? 'audio/webm'
+				: '';
+
+		mediaRecorder = new MediaRecorder(stream, mimeType ? { mimeType } : undefined);
+
+		mediaRecorder.ondataavailable = (e) => {
+			if (e.data.size > 0) chunks.push(e.data);
+		};
+
+		mediaRecorder.onstop = async () => {
+			stopTimer();
+			stopStream();
+
+			if (chunks.length === 0) {
+				recState = 'idle';
+				return;
+			}
+
+			const blob = new Blob(chunks, { type: mediaRecorder?.mimeType || 'audio/webm' });
+			chunks = [];
+
+			// Upload
+			recState = 'uploading';
+			try {
+				const ext = blob.type.includes('webm') ? 'webm' : 'ogg';
+				const file = new File([blob], `voice-memo.${ext}`, { type: blob.type });
+
+				const result = await uploadMedia(accessToken!, {
+					file,
+					title: 'Talenotat',
+					visibility: 'hidden',
+					source_id: sourceId,
+				});
+
+				onrecorded?.({
+					media_node_id: result.media_node_id,
+					cas_hash: result.cas_hash,
+				});
+			} catch (e) {
+				onerror?.(e instanceof Error ? e.message : 'Feil ved opplasting av lydopptak');
+			} finally {
+				recState = 'idle';
+			}
+		};
+
+		mediaRecorder.start(1000); // Collect data every second
+		recState = 'recording';
+		startTimer();
+	}
+
+	function stopRecording() {
+		if (mediaRecorder?.state === 'recording') {
+			mediaRecorder.stop();
+		}
+	}
+
+	function cancelRecording() {
+		chunks = []; // Clear so onstop won't upload
+		if (mediaRecorder?.state === 'recording') {
+			mediaRecorder.stop();
+		}
+		stopTimer();
+		stopStream();
+		recState = 'idle';
+	}
+
+	function startTimer() {
+		durationInterval = setInterval(() => { duration++; }, 1000);
+	}
+
+	function stopTimer() {
+		if (durationInterval) {
+			clearInterval(durationInterval);
+			durationInterval = undefined;
+		}
+	}
+
+	function stopStream() {
+		stream?.getTracks().forEach(t => t.stop());
+		stream = undefined;
+	}
+</script>
+
+{#if recState === 'idle'}
+	<button
+		onclick={startRecording}
+		disabled={disabled || !accessToken}
+		class="flex h-10 w-10 shrink-0 items-center justify-center rounded-full text-gray-400 transition-colors hover:bg-red-50 hover:text-red-500 disabled:cursor-not-allowed disabled:opacity-40"
+		aria-label="Ta opp talenotat"
+		title="Ta opp talenotat"
+	>
+		<!-- Microphone icon -->
+		<svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+			<path stroke-linecap="round" stroke-linejoin="round" d="M12 1a3 3 0 00-3 3v8a3 3 0 006 0V4a3 3 0 00-3-3z" />
+			<path stroke-linecap="round" stroke-linejoin="round" d="M19 10v2a7 7 0 01-14 0v-2" />
+			<line x1="12" y1="19" x2="12" y2="23" />
+			<line x1="8" y1="23" x2="16" y2="23" />
+		</svg>
+	</button>
+{:else if recState === 'recording'}
+	<div class="flex items-center gap-2">
+		<!-- Cancel button -->
+		<button
+			onclick={cancelRecording}
+			class="flex h-8 w-8 shrink-0 items-center justify-center rounded-full text-gray-400 hover:bg-gray-100 hover:text-gray-600"
+			aria-label="Avbryt opptak"
+			title="Avbryt opptak"
+		>
+			<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+				<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+			</svg>
+		</button>
+
+		<!-- Recording indicator -->
+		<div class="flex items-center gap-1.5">
+			<span class="h-2 w-2 animate-pulse rounded-full bg-red-500"></span>
+			<span class="text-xs font-medium text-red-600">{formatDuration(duration)}</span>
+		</div>
+
+		<!-- Stop/send button -->
+		<button
+			onclick={stopRecording}
+			class="flex h-10 w-10 shrink-0 items-center justify-center rounded-full bg-red-600 text-white transition-colors hover:bg-red-700"
+			aria-label="Stopp og send opptak"
+			title="Stopp og send opptak"
+		>
+			<svg class="h-4 w-4" fill="currentColor" viewBox="0 0 24 24">
+				<rect x="6" y="6" width="12" height="12" rx="2" />
+			</svg>
+		</button>
+	</div>
+{:else if recState === 'uploading'}
+	<div class="flex items-center gap-1.5">
+		<svg class="h-4 w-4 animate-spin text-blue-600" fill="none" viewBox="0 0 24 24">
+			<circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+			<path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"></path>
+		</svg>
+		<span class="text-xs text-blue-600">Laster opp…</span>
+	</div>
+{/if}

frontend/src/routes/chat/[id]/+page.svelte

@@ -204,7 +204,7 @@
 	{#if connected && accessToken && communicationNode}
 		<div class="shrink-0 border-t border-gray-200 bg-white">
 			<div class="mx-auto max-w-3xl px-4 py-3">
-				<ChatInput onsubmit={handleSendMessage} disabled={!connected} />
+				<ChatInput onsubmit={handleSendMessage} disabled={!connected} {accessToken} contextId={communicationId} />
 			</div>
 		</div>
 	{/if}

tasks.md

@@ -95,8 +95,7 @@ Uavhengige faser kan fortsatt plukkes.
 
 - [x] 7.1 faster-whisper oppsett: Docker-container, GPU hvis tilgjengelig, norsk modell. Ref: `docs/erfaringer/`.
 - [x] 7.2 Transkripsjons-pipeline: lydfil i CAS → maskinrommet trigger Whisper → resultat i `content`-feltet.
-- [~] 7.3 Voice memo i frontend: opptak-knapp i input-komponenten → upload → CAS → transkripsjon.
+- [x] 7.3 Voice memo i frontend: opptak-knapp i input-komponenten → upload → CAS → transkripsjon.
-  > Påbegynt: 2026-03-17T17:47
 - [ ] 7.4 Lyd-avspilling: spiller av original lyd fra CAS-node. Waveform-visning.
 
 ## Fase 8: Aliaser