Describe the bug
Pre and post summarization shows same token count, only after next llm call this is updated

$ goose session -r
resuming session | provider: openrouter model: anthropic/claude-sonnet-4
logging to /home/cb/.local/share/goose/sessions/20250720_141858.jsonl
working directory: /home/cb/projects/github/goose

Goose is running! Enter your instructions, or try asking what goose can do.

Context: ●●●●●●●○○○ 68% (136479/200000 tokens)
( O)> /summarize
◇ Are you sure you want to summarize this conversation? This will condense the message history.
│ Yes
│
Summarizing conversation...
Conversation has been summarized.
Key information has been preserved while reducing context length.
Context: ●●●●●●●○○○ 68% (136479/200000 tokens)
Carine B (BE - CET TZ) — 14:45
after the next call, it shows correctly
Context: ●●●○○○○○○○ 26% (52824/200000 tokens)

Expected behavior
After summarization; correctly reflecting the reduced token count - or an estimate or a message saying it will be updated after next call - anything that gives confidence that it worked

Please provide following information:

• OS & Arch: Ubuntu 22.04 x86
• Interface: CLI
• Version: v1.1.3
• Extensions enabled: developer
• Provider & Model: openrouter anthropic/claude-sonnet-4