* fix: correct tool call card rendering on session load
Two bugs caused duplicate/incorrect tool call cards when loading
sessions (especially after context compaction):
1. loadSession() sanitized messages (B9 filter) but did NOT update
the session-level tool_calls array's assistant_msg_idx references.
Since compact() returns only sanitized messages and recomputes
tool_calls with indices into the compacted array, the original
assistant_msg_idx values became stale/misaligned.
2. loadSession() then assigned the broken session-level tool_calls
directly to S.toolCalls. This prevented renderMessages()'s fallback
path (which derives tool_calls from per-message tool_calls using
correct sanitized-array indices) from ever running.
Fix:
- Keep full sanitization loop with index remapping for session-level
tool_calls (in case they're needed by other code paths).
- Instead of assigning broken session-level tool_calls to S.toolCalls,
set S.toolCalls=[] so renderMessages() uses the fallback derivation
from per-message tool_calls, which already have correct indices.
* test: add 8 regression tests for issue #401 tool call index remapping
* docs: v0.50.29 release — version badge and CHANGELOG
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Co-authored-by: Frank Song <franksong2702@gmail.com>
Co-authored-by: Nathan Esquenazi <nesquena@gmail.com>
