make web ui state directory configurable (#764)

tests/server/chat-run-message-flush.test.ts

@@ -9,11 +9,6 @@ vi.mock('../../packages/server/src/db/hermes/session-store', () => ({
   getSessionDetailPaginated: vi.fn(),
   createSession: vi.fn(),
   updateSessionStats: vi.fn(),
-  useLocalSessionStore: vi.fn(() => false),
-}))
-
-vi.mock('../../packages/server/src/db/hermes/sessions-db', () => ({
-  getSessionDetailFromDb: vi.fn(),
 }))
 
 vi.mock('../../packages/server/src/services/logger', () => ({
@@ -44,7 +39,7 @@ vi.mock('../../packages/server/src/db/hermes/usage-store', () => ({
   updateUsage: vi.fn(),
 }))
 
-// --- Types mirroring chat-run-socket.ts ---
+// --- Types mirroring run-chat response flushing ---
 
 interface SessionMessage {
   id: number | string

tests/server/config.test.ts

@@ -1,5 +1,7 @@
 import { describe, expect, it } from 'vitest'
-import { getListenHost } from '../../packages/server/src/config'
+import { homedir } from 'os'
+import { join, resolve } from 'path'
+import { getListenHost, getWebUiHome } from '../../packages/server/src/config'
 
 describe('server config', () => {
   it('defaults to an IPv4 bind host', () => {
@@ -13,4 +15,16 @@ describe('server config', () => {
   it('ignores blank BIND_HOST values', () => {
     expect(getListenHost({ BIND_HOST: ' ' })).toBe('0.0.0.0')
   })
+
+  it('defaults web-ui home to ~/.hermes-web-ui', () => {
+    expect(getWebUiHome({})).toBe(join(homedir(), '.hermes-web-ui'))
+  })
+
+  it('uses HERMES_WEB_UI_HOME when provided', () => {
+    expect(getWebUiHome({ HERMES_WEB_UI_HOME: ' ./tmp/hermes-ui ' })).toBe(resolve('./tmp/hermes-ui'))
+  })
+
+  it('uses HERMES_WEBUI_STATE_DIR as a compatibility alias', () => {
+    expect(getWebUiHome({ HERMES_WEBUI_STATE_DIR: ' ./tmp/hermes-state ' })).toBe(resolve('./tmp/hermes-state'))
+  })
 })

tests/server/sessions-controller.test.ts

@@ -49,9 +49,7 @@ vi.mock('../../packages/server/src/db/hermes/sessions-db', () => ({
   getUsageStatsFromDb: getUsageStatsFromDbMock,
 }))
 
-// Mock useLocalSessionStore to return false so we test the CLI path
 vi.mock('../../packages/server/src/db/hermes/session-store', () => ({
-  useLocalSessionStore: () => false,
   listSessions: localListSessionsMock,
   searchSessions: localSearchSessionsMock,
   getSessionDetail: localGetSessionDetailMock,