适配内网部署

build: update frontend dist with timestamp 20260316.1042

fix: add data_ws fallback for memory.md in agent_context.py

feat: lower default max_tokens to 4096, add per-model max_output_tokens config

fix: scope agent-installed tools by tenant + pass tenant_id in frontend

refactor: move delete company from sidebar to Enterprise Settings Company Info tab

fix: variable shadowing - rename loop var to avoid conflict with i18n t()

feat: add delete company functionality

fix: scope approvals, audit logs, tools, skills by tenant

feat: add auto-versioning - display build version in sidebar footer

fix: scope Model Pool by tenant + fix refresh-revert bug

fix: correct wecom-aibot-sdk-python version requirement (closes #97)

fix: replace 5-min lookback with timestamp snapshot for on_message triggers

fix: add channel_type=feishu filter to all ChannelConfig queries in send_feishu_message

feat: switch Feishu identification from per-app open_id to tenant-stable user_id