v0.8.7

Added

• Claude Opus 4.7 pricing — added pricing for the new Opus 4.7 model ($5/$25 per MTok). Unknown opus models now fall back to 4.7 pricing.

Improved

• Atomic pricing cache writes — cache file is now written via temp file + rename to prevent corruption on crash.
• File close error handling — updater now properly checks Close() errors when writing binaries, preventing silent failures.
• Consistent log format — all log messages now use [tag] prefix format (e.g. [startup], [shutdown]).

Refactored

• Extracted helpers in memory discovery and session parsing to reduce duplication.
• Added SendJSON convenience method to SSE broker, replacing repeated marshal+broadcast boilerplate.
• Simplified memory API handlers by removing redundant nil guards.
• Config loader now derives paths from defaults instead of recomputing $HOME.