coso 5f0cf2773f refactor(app-server): extract model domain handlers (R-20 seventh cut) ...

R-20 seventh cut：提取 model domain handlers

改动：
- 新增 processor/model.rs（25 个 handler，339 行）
- processor/mod.rs：3543 → 3215 行（-9.3%）

processor 目录结构：
- mod.rs (3215行) — dispatch + 剩余 handlers
- agent_session.rs (237行) — 16 个 handler
- agent_app.rs (155行) — 11 个 handler
- automation.rs (174行) — 13 个 handler
- gateway.rs (148行) — 12 个 handler
- knowledge.rs (139行) — 8 个 handler
- media.rs (101行) — 7 个 handler
- model.rs (339行) — 25 个 handler
- skill.rs (303行) — 22 个 handler
- workspace.rs (256行) — 19 个 handler
- project_git.rs (70行) — 4 个 handler

总计提取：137 个 handler（占原始 241 个的 57%）

验证：
- cargo check -p app-server --lib 通过
- 文件体量守卫通过

2026-06-11 15:12:08 +08:00

..

file-size-baseline.json

refactor(app-server): extract model domain handlers (R-20 seventh cut)

2026-06-11 15:12:08 +08:00

import-boundary-baseline.json

refactor(workspace): remove workbenchWorkflow re-export, fix import (R-31)

2026-06-11 13:36:24 +08:00