refactor: stop persisting workspace state in the browser

frontend/src/workspaces/drafts.ts

@@ -4,16 +4,6 @@ import type {
 } from "../api/workspaces";
 export { workspacePreferences, type WorkspacePreference } from "./preferences";
 
-export interface WorkspaceBootstrapDraft {
-  workspaceId: string;
-  baseCommit: string;
-  workspace: CanonicalWorkspace;
-  updatedAt: string;
-}
-
-/** @deprecated Use WorkspaceBootstrapDraft. */
-export type WorkspaceDraft = WorkspaceBootstrapDraft;
-
 export const WORKSPACE_SUMMARY_ERROR = "Could not load workspace registry. Please retry.";
 export const WORKSPACE_POLICY_ERROR = "Could not load selected workspace policy. Please retry.";
 
@@ -117,14 +107,6 @@ export const workspacePolicyGate = {
   },
 };
 
-const LEGACY_PREFIX = "thothii.workspace-registry.v1";
-const PREFIX = "thothii.workspace-registry.v2";
-const DRAFT_PREFIX = `${PREFIX}.bootstrap.`;
-
-function storage(): Storage | undefined {
-  try { return window.localStorage; } catch { return undefined; }
-}
-
 function record(value: unknown): Record<string, unknown> | undefined {
   return value && typeof value === "object" && !Array.isArray(value)
     ? value as Record<string, unknown>
@@ -473,108 +455,3 @@ export function sanitizeCanonicalWorkspace(value: unknown): CanonicalWorkspace |
     ...(evidence ? { evidence } : {}),
   };
 }
-
-function repairBootstrapWorkspace(value: unknown, id: string): CanonicalWorkspace | undefined {
-  const direct = sanitizeCanonicalWorkspace(value);
-  if (direct) return direct;
-  const source = exactRecord(value, [
-    "workspace", "dwh", "semantic_index", "llm_policy", "diagnostics", "evidence",
-  ]);
-  const evidence = exactRecord(source?.evidence, ["source", "policy"]);
-  const evidenceSource = exactRecord(evidence?.source, ["type", "uri", "patterns", "max_bytes"]);
-  if (
-    source
-    && evidence
-    && evidenceSource?.type === "filesystem"
-    && typeof evidenceSource.uri === "string"
-    && /^[a-z][a-z0-9-]{2,62}\/evidence$/.test(evidenceSource.uri)
-  ) {
-    return sanitizeCanonicalWorkspace({
-      ...source,
-      evidence: {
-        ...evidence,
-        source: {
-          ...evidenceSource,
-          uri: `${id}/evidence`,
-        },
-      },
-    });
-  }
-  return undefined;
-}
-
-function normalize(value: unknown): WorkspaceBootstrapDraft | undefined {
-  const source = exactRecord(value, ["workspaceId", "baseCommit", "workspace", "updatedAt"]);
-  const id = workspaceId(source?.workspaceId);
-  const workspace = id ? repairBootstrapWorkspace(source?.workspace, id) : undefined;
-  const baseCommit = typeof source?.baseCommit === "string" && /^[0-9a-f]{40}$/.test(source.baseCommit) ? source.baseCommit : undefined;
-  const updatedAt = typeof source?.updatedAt === "string" && Number.isFinite(Date.parse(source.updatedAt)) ? source.updatedAt : undefined;
-  if (!source || !workspace || !id || id !== workspace.workspace.id || !baseCommit || !updatedAt) {
-    return undefined;
-  }
-  return {
-    workspaceId: id,
-    baseCommit,
-    workspace,
-    updatedAt,
-  };
-}
-
-function key(id: string): string {
-  return `${DRAFT_PREFIX}${encodeURIComponent(id)}`;
-}
-
-function purgeLegacyRegistryDrafts(): void {
-  const store = storage();
-  if (!store) return;
-  const keys = Array.from({ length: store.length }, (_, index) => store.key(index)).filter((value): value is string => value !== null);
-  for (const entry of keys) {
-    if (entry.startsWith(`${LEGACY_PREFIX}.draft.`) || entry.startsWith(`${LEGACY_PREFIX}.delete.`)) {
-      store.removeItem(entry);
-    }
-  }
-}
-
-/** Browser-only bootstrap drafts. Saving or editing one never calls the server. */
-export const workspaceBootstrapDrafts = {
-  load(id: string): WorkspaceBootstrapDraft | undefined {
-    purgeLegacyRegistryDrafts();
-    try {
-      const raw = storage()?.getItem(key(id));
-      return raw ? normalize(JSON.parse(raw)) : undefined;
-    } catch {
-      return undefined;
-    }
-  },
-
-  save(draft: WorkspaceBootstrapDraft): void {
-    purgeLegacyRegistryDrafts();
-    const safe = normalize(draft);
-    if (!safe) return;
-    try { storage()?.setItem(key(safe.workspaceId), JSON.stringify(safe)); } catch { /* storage is optional */ }
-  },
-
-  discard(id: string): void {
-    purgeLegacyRegistryDrafts();
-    try { storage()?.removeItem(key(id)); } catch { /* storage is optional */ }
-  },
-};
-
-/** @deprecated Use workspaceBootstrapDrafts. */
-export const workspaceDrafts = workspaceBootstrapDrafts;
-
-
-/** @deprecated Removed in P1.1; existing workspaces are curator-owned and deletions are not drafted in-browser. */
-export interface WorkspaceDeletionDraft {
-  id: string;
-  baseCommit: string;
-  baseBlob: string;
-  updatedAt: string;
-}
-
-/** @deprecated Removed in P1.1; kept temporarily so legacy imports compile during the UI transition. */
-export const workspaceDeletionDrafts = {
-  load(_id: string): WorkspaceDeletionDraft | undefined { return undefined; },
-  save(_draft: WorkspaceDeletionDraft): void {},
-  discard(_id: string): void {},
-};