V4.14.9 dev (#6555)

* feat: encapsulate logger (#6535)

* feat: encapsulate logger

* update engines

---------

Co-authored-by: archer <545436317@qq.com>

* next config

* dev shell

* Agent sandbox (#6532)

* docs: switch to docs layout and apply black theme (#6533)

* feat: add Gemini 3.1 models

- Add gemini-3.1-pro-preview (released February 19, 2026)
- Add gemini-3.1-flash-lite-preview (released March 3, 2026)

Both models support:
- 1M context window
- 64k max response
- Vision
- Tool choice

* docs: switch to docs layout and apply black theme

- Change layout from notebook to docs
- Update logo to icon + text format
- Apply fumadocs black theme
- Simplify global.css (keep only navbar and TOC styles)
- Fix icon components to properly accept className props
- Add mobile text overflow handling
- Update Node engine requirement to >=20.x

* doc

* doc

* lock

* fix: ts

* doc

* doc

---------

Co-authored-by: archer <archer@archerdeMac-mini.local>
Co-authored-by: archer <545436317@qq.com>

* Doc (#6493)

* cloud doc

* doc refactor

* doc move

* seo

* remove doc

* yml

* doc

* fix: tsconfig

* fix: tsconfig

* sandbox version (#6497)

* sandbox version

* add sandbox log

* update lock

* fix

* fix: sandbox

* doc

* add console

* i18n

* sandbxo in agent

* feat: agent sandbox

* lock

* feat: sandbox ui

* sandbox check exists

* env tempalte

* doc

* lock

* sandbox in chat window

* sandbox entry

* fix: test

* rename var

* sandbox config tip

* update sandbox lifecircle

* update prompt

* rename provider test

* sandbox logger

* yml

---------

Co-authored-by: Archer <archer@fastgpt.io>
Co-authored-by: archer <archer@archerdeMac-mini.local>

* perf: sandbox error tip

* Add sandbox limit and fix some issue (#6550)

* sandbox in plan

* fix: some issue

* fix: test

* editor default path

* fix: comment

* perf: sandbox worksapce

* doc

* perf: del sandbox

* sandbox build

* fix: test

* fix: pr comment

---------

Co-authored-by: Ryo <whoeverimf5@gmail.com>
Co-authored-by: Archer <archer@fastgpt.io>
Co-authored-by: archer <archer@archerdeMac-mini.local>

test/cases/global/core/chat/utils.test.ts

@@ -35,6 +35,7 @@ describe('transformPreviewHistories', () => {
       obj: ChatRoleEnum.AI,
       value: [{ text: { content: 'test response' } }],
       responseData: undefined,
+      useAgentSandbox: false,
       llmModuleAccount: 1,
       totalQuoteList: [],
       historyPreviewLength: undefined
@@ -61,6 +62,7 @@ describe('transformPreviewHistories', () => {
       obj: ChatRoleEnum.AI,
       value: [{ text: { content: 'test response' } }],
       responseData: undefined,
+      useAgentSandbox: false,
       llmModuleAccount: 1,
       totalQuoteList: undefined,
       historyPreviewLength: undefined
@@ -149,6 +151,7 @@ describe('addStatisticalDataToHistoryItem', () => {
     expect(result).toEqual({
       ...item,
       llmModuleAccount: 3,
+      useAgentSandbox: false,
       totalQuoteList: [
         {
           id: quoteId,
@@ -182,6 +185,7 @@ describe('addStatisticalDataToHistoryItem', () => {
 
     expect(result).toEqual({
       ...item,
+      useAgentSandbox: false,
       llmModuleAccount: 1,
       totalQuoteList: [],
       historyPreviewLength: undefined
@@ -222,6 +226,7 @@ describe('addStatisticalDataToHistoryItem', () => {
 
     expect(result).toEqual({
       ...item,
+      useAgentSandbox: false,
       llmModuleAccount: 3,
       totalQuoteList: [],
       historyPreviewLength: undefined