OpenFang 0.3.35 ڈاؤن لوڈ

Fixes
- SSE streaming: add stream_options for accurate token counts in OpenAI-compatible drivers
- UTF-8 safety (#472): fix 7 byte-slicing panics on multi-byte characters
- Cron timezone (#473): chrono-tz for IANA timezone-aware scheduling
- TOML multiline (#463): triple-quoted strings for system_prompt in manifest generation
- Dashboard auth (#468): 401 interceptor clears stale tokens, all tabs use OpenFangAPI client
- Custom providers (#471, #476, #446): auto-detect {PROVIDER}_API_KEY env vars, clear error on missing base_url
- Cron stale agent (#461): reassign_agent_jobs() on hand reactivation
- Provider probing (#474): concurrent health checks with 60s cache
- Model switch sync (#466, #387): server-resolved provider propagated to dashboard
- OpenRouter models (#385): 10 real models replacing placeholders
- Embedding URL (#395): auto-append /v1, read provider_urls config
- ZHIPU format (#384): non-null content on tool_call messages
- Fish shell (#372): detect target file for correct PATH syntax
Stats
39 files changed, 1194 insertions, 254 deletions, 1915 tests pass, 0 clippy warnings