cendor-sdk 1.13.0

Wire the SDK onto the cendor-core ambient seam, harden live_spans, isolate streaming contexts, and add streamed thinking deltas.

Fixed

• Stream context isolation (GLR-9): the streaming runners (run.stream / run.astream, single- and multi-agent) no longer leak the run's scopes (trace / attribution / budget / audit / collector) into the consumer between deltas. A consumer's own instrumented call made between two streamed events is no longer misattributed to the run (it was appended to Result.steps, counted against the run's budget, chained under its audit decision, and rendered as a live span). Sync streams advance inside a copied context; async streams relay through a producer task + queue (the design the TypeScript port always had). One behavior note: ambient scopes are captured when the stream is created, not re-read live per advance.

Added

• ThinkingDelta (GLR-12): a new additive run.stream event surfacing streamed reasoning text for providers that stream it (Ollama think models; OpenAI-compatible reasoning_content), kept separate from TextDelta. Additive — a consumer that doesn't handle it is unaffected.

Changed

• live_spans (GLR-2/3): reads the agent + conversation id from the event's stamped metadata (so they survive an out-of-scope streamed delivery), and renders only the observed run family — a concurrent run sharing the process bus no longer pollutes its steps / rollups / children.
• RAG in scope (GLR-4): for a fresh (non-resumed) run(), a retriever's embedding call is now attributed to the run (a collected step, trace-stamped, budgeted) instead of firing before the run opened.
• Requires cendor-core >= 1.9, cendor-tokenguard >= 1.4, cendor-acttrace >= 1.10, cendor-cassette >= 1.1 (the ambient-seam shelf).