cendor-sdk 1.11.0

Opt-in content on the run spans + auto session grouping — the SDK half of the Cendor journey console (Monitor v3). Backward-compatible (additive); content stays OFF unless you opt in with cendor.core.otel.capture_content().

Added

• Opt-in content on span_tree / live_spans (G17/G18). When content capture is on (core 1.7's otel.capture_content()), each chat step span carries gen_ai.input.messages, gen_ai.output.messages (incl. parsed thinking parts), and gen_ai.system_instructions (extracted from the request kwargs for Anthropic/Responses/Gemini/Bedrock, where the system prompt isn't a message); each execute_tool span carries cendor.tool.arguments / cendor.tool.result. All masked + byte-capped by the core config, and never on audit.* spans (rule 6). Off by default.
• Auto conversation id (G19). run(session=…) propagates the session's key as gen_ai.conversation.id on the run span — SQLiteSessionStore.load(id) now stamps Session.id, and Session(id=…) works for the in-memory case. live_spans reads it live; span_tree reads it from Result.conversation_id (new field). An explicit conversation_id= argument still wins; a conversation id is never synthesized (semconv).
• Cassette replay flag on run spans (G22). A replayed chat step carries cendor.replayed=true.
• G20 co-existence. live_spans signals core's opt-in bus→span emitter to stand down while it owns the spans (no double emission).

Changed

• Dependency floor cendor-core >= 1.7 (content-capture helpers).