feat(hermes): add memory flush setting

tests/hermes-config-page-ui.test.js

@@ -33,6 +33,7 @@ test('Hermes 配置页会暴露记忆结构化配置字段', () => {
     'hm-memory-char-limit',
     'hm-memory-user-char-limit',
     'hm-memory-nudge-interval',
+    'hm-memory-flush-min-turns',
   ]) {
     assert.match(source, new RegExp(`id="${id}"`), `缺少 ${id}`)
   }

tests/hermes-memory-config.test.js

@@ -15,6 +15,7 @@ test('Hermes 记忆配置读取会提供上游默认值', () => {
     memoryCharLimit: 2200,
     userCharLimit: 1375,
     nudgeInterval: 10,
+    flushMinTurns: 6,
   })
 })
 
@@ -26,6 +27,7 @@ test('Hermes 记忆配置读取会回显 YAML 中的记忆字段', () => {
       memory_char_limit: 3200,
       user_char_limit: 1800,
       nudge_interval: 12,
+      flush_min_turns: 8,
     },
   })
 
@@ -34,6 +36,7 @@ test('Hermes 记忆配置读取会回显 YAML 中的记忆字段', () => {
   assert.equal(values.memoryCharLimit, 3200)
   assert.equal(values.userCharLimit, 1800)
   assert.equal(values.nudgeInterval, 12)
+  assert.equal(values.flushMinTurns, 8)
 })
 
 test('Hermes 记忆配置保存会保留无关 YAML 并写入 snake_case 字段', () => {
@@ -43,6 +46,7 @@ test('Hermes 记忆配置保存会保留无关 YAML 并写入 snake_case 字段'
       memory_enabled: true,
       provider: 'honcho',
       custom_flag: 'keep-me',
+      flush_min_turns: 9,
     },
     streaming: { enabled: true },
   }, {
@@ -51,6 +55,7 @@ test('Hermes 记忆配置保存会保留无关 YAML 并写入 snake_case 字段'
     memoryCharLimit: '2600',
     userCharLimit: '1500',
     nudgeInterval: '0',
+    flushMinTurns: '7',
   })
 
   assert.deepEqual(next.model, { provider: 'anthropic' })
@@ -60,6 +65,7 @@ test('Hermes 记忆配置保存会保留无关 YAML 并写入 snake_case 字段'
   assert.equal(next.memory.memory_char_limit, 2600)
   assert.equal(next.memory.user_char_limit, 1500)
   assert.equal(next.memory.nudge_interval, 0)
+  assert.equal(next.memory.flush_min_turns, 7)
   assert.equal(next.memory.provider, 'honcho')
   assert.equal(next.memory.custom_flag, 'keep-me')
 })
@@ -81,4 +87,12 @@ test('Hermes 记忆配置保存会拒绝越界字符上限和提醒间隔', () =
     () => mergeHermesMemoryConfig({}, { nudgeInterval: '1001' }),
     /memory\.nudge_interval/,
   )
+  assert.throws(
+    () => mergeHermesMemoryConfig({}, { flushMinTurns: '-1' }),
+    /memory\.flush_min_turns/,
+  )
+  assert.throws(
+    () => mergeHermesMemoryConfig({}, { flushMinTurns: '1001' }),
+    /memory\.flush_min_turns/,
+  )
 })