feat: wire all remaining API endpoints

- src/api/keys.ts: QK singleton for all 20+ query key patterns
- src/api/queries.ts: rewritten with QK + full mutation coverage:
  deleteWorkspace, updateWorkspace, scheduleDream,
  updatePeer, setPeerCard, searchPeer,
  deleteSession, updateSession, cloneSession, searchSession,
  createMessages, updateMessage,
  useSessionPeers, addPeersToSession, setSessionPeers,
  removePeersFromSession, setPeerConfig,
  createConclusion, deleteConclusion,
  useWebhooks, createWebhook, deleteWebhook, testWebhook,
  createKey

Shared primitives (just-in-time):
- ConfirmDialog: animated modal with keyboard/click-out dismiss
- FormModal: reusable modal shell
- InlineEditor: click-to-edit with commit/cancel

New surfaces:
- WorkspaceDetail: delete + schedule dream buttons
- ScheduleDreamModal: Zod-validated observer/session form
- WebhookManager: full CRUD + test emit (new /webhooks route)
- SessionDetail: delete, clone, session search, peer membership tab
- PeerDetail: editable peer card, semantic search tab
- ConclusionBrowser: create conclusion modal (Zod), per-row delete

src/components/workspaces/ScheduleDreamModal.tsx

@@ -0,0 +1,116 @@
+import { useState } from "react";
+import { z } from "zod";
+import type { UseMutationResult } from "@tanstack/react-query";
+import { FormModal } from "@/components/shared/FormModal";
+
+const schema = z.object({
+	observer: z.string().min(1, "Observer peer ID is required"),
+	observed: z.string().optional(),
+	session_id: z.string().optional(),
+});
+
+interface Props {
+	open: boolean;
+	workspaceId: string;
+	onClose: () => void;
+	mutation: UseMutationResult<
+		void,
+		Error,
+		{ observer: string; observed?: string | null; dream_type: "omni"; session_id?: string | null }
+	>;
+}
+
+export function ScheduleDreamModal({ open, onClose, mutation }: Props) {
+	const [observer, setObserver] = useState("");
+	const [observed, setObserved] = useState("");
+	const [sessionId, setSessionId] = useState("");
+	const [validationError, setValidationError] = useState("");
+
+	const reset = () => {
+		setObserver("");
+		setObserved("");
+		setSessionId("");
+		setValidationError("");
+	};
+
+	const handleSubmit = async (e: React.SyntheticEvent<HTMLFormElement>) => {
+		e.preventDefault();
+		const result = schema.safeParse({ observer, observed: observed || undefined, session_id: sessionId || undefined });
+		if (!result.success) {
+			setValidationError(result.error.errors[0].message);
+			return;
+		}
+		await mutation.mutateAsync({
+			observer: result.data.observer,
+			observed: result.data.observed ?? null,
+			dream_type: "omni",
+			session_id: result.data.session_id ?? null,
+		});
+		reset();
+		onClose();
+	};
+
+	return (
+		<FormModal open={open} title="Schedule Dream" onClose={() => { reset(); onClose(); }}>
+			<form onSubmit={handleSubmit} className="space-y-4">
+				<div>
+					<label className="block text-xs font-medium mb-1.5" style={{ color: "var(--text-2)" }}>
+						Observer peer ID <span style={{ color: "#f87171" }}>*</span>
+					</label>
+					<input
+						value={observer}
+						onChange={(e) => { setObserver(e.target.value); setValidationError(""); }}
+						placeholder="peer_id"
+						className="theme-input w-full text-sm px-3 py-2 rounded-lg"
+					/>
+				</div>
+				<div>
+					<label className="block text-xs font-medium mb-1.5" style={{ color: "var(--text-2)" }}>
+						Observed peer ID <span style={{ color: "var(--text-4)" }}>(optional, defaults to observer)</span>
+					</label>
+					<input
+						value={observed}
+						onChange={(e) => setObserved(e.target.value)}
+						placeholder="peer_id"
+						className="theme-input w-full text-sm px-3 py-2 rounded-lg"
+					/>
+				</div>
+				<div>
+					<label className="block text-xs font-medium mb-1.5" style={{ color: "var(--text-2)" }}>
+						Session ID <span style={{ color: "var(--text-4)" }}>(optional)</span>
+					</label>
+					<input
+						value={sessionId}
+						onChange={(e) => setSessionId(e.target.value)}
+						placeholder="session_id"
+						className="theme-input w-full text-sm px-3 py-2 rounded-lg"
+					/>
+				</div>
+				{validationError && (
+					<p className="text-xs" style={{ color: "#f87171" }}>{validationError}</p>
+				)}
+				{mutation.error && (
+					<p className="text-xs" style={{ color: "#f87171" }}>{mutation.error.message}</p>
+				)}
+				<div className="flex justify-end gap-2 pt-2">
+					<button
+						type="button"
+						onClick={() => { reset(); onClose(); }}
+						className="px-3 py-1.5 text-sm rounded-lg"
+						style={{ background: "var(--surface)", border: "1px solid var(--border)", color: "var(--text-2)" }}
+					>
+						Cancel
+					</button>
+					<button
+						type="submit"
+						disabled={mutation.isPending}
+						className="px-3 py-1.5 text-sm rounded-lg font-medium disabled:opacity-50"
+						style={{ background: "var(--accent-dim)", border: "1px solid var(--accent-border)", color: "var(--accent-text)" }}
+					>
+						{mutation.isPending ? "Scheduling..." : "Schedule"}
+					</button>
+				</div>
+			</form>
+		</FormModal>
+	);
+}