v1.3.11

• chore(release): prepare v1.3.11 (bf56ae4)
• feat(llm): add kkaiapi and harden service setup (684367f)
• fix(core): honor requested story line proportions (603dc1b)
• fix(core): sanitize generated hook ids (dfa88aa)
• feat(studio): route book creation through chat (25f9e06)
• Update README.md (7f6e80a)
• Add files via upload (36e68c1)
• fix(core): lazy-load notification transports (b08d59b)
• fix(studio): prefer live Volcengine probe models (3d4a4e1)
• fix(studio): surface create config errors (d597ce4)
• fix(studio): localize runtime error copy (f0ade5f)
• fix(studio): simplify book creation form (d1566db)

Full Changelog: v1.3.10...v1.3.11