ioanbudea-OAI 3062f7aa4a Add validated elastic section budget configuration for Guardian (#58123) ...

## What changed

Export `ElasticBudgetConfig`, named `ElasticSection` groups, and validated `ElasticSectionLimits` for optional evidence. Each group can specify a minimum token reservation and a per-entry text cap.

Validate limits during construction and deserialization: both values must be positive, and the entry cap must fit within the minimum reservation and the existing text-part delivery allowance. Reject unknown configuration fields.

This adds configuration types only; elastic allocation is not activated.

## Testing

Add a serialization round-trip test and deserialization checks for zero limits, entry caps above the minimum reservation, and entry caps above the delivery allowance.

GitOrigin-RevId: c869018cfc0d96377b1adbfbdd98e1d88bd1b32a

2026-10-29 16:46:01 +00:00

..

src

Add validated elastic section budget configuration for Guardian (#58123)

2026-10-29 16:46:01 +00:00

tests

Centralize synchronous Guardian context preparation (#57494)

2026-10-27 15:53:50 +00:00

BUILD.bazel

Add shared Guardian context primitives (#41392)

2026-08-28 19:02:26 +00:00

Cargo.toml

Move Guardian approval reason caps into context composition (#56477)

2026-10-23 13:32:34 +00:00