codemode: echo the execution call log on the proxy tool output

[mattzcarey]

Closes #1845.

The durable codemode runtime already records every connector call and codemode.step in its replay log (ToolLogEntry: seq, connector, method, args, result, approval requirement, state). This surfaces that log on ProxyToolOutput as an optional calls field on all three outcomes (completed, paused, error), so UIs can render an audit trail of what ran — and what is pending approval — straight from the tool output, without a separate executions() round trip.

No new recording machinery: the field just echoes the execution's existing durable log at the end of the pass.

• ProxyToolOutput gains calls?: ToolLogEntry[] on every variant
• runPass attaches execution.log to the returned output (initial run and resume-after-approval alike)
• e2e test covering the log across a pause → approve → completion cycle
• patch changeset for @cloudflare/codemode

---

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🦋 Changeset detected

Latest commit: 02d8dc3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@cloudflare/codemode	Patch

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