deps(deps): bump stillwater from 0.11.0 to 0.13.0

[dependabot]

Bumps stillwater from 0.11.0 to 0.13.0.

Changelog

Sourced from stillwater's changelog.

[0.13.0] - 2025-11-28

Added

Error Recovery Combinators for Effect (Spec 040)

• Selective error recovery - Fine-grained control between total recovery (or_else) and no recovery

  • .recover(predicate, handler) - Recover from specific errors using predicate-based matching with effect handler
  • .recover_with(predicate, handler) - Recover using Result-returning handler for simpler cases
  • .recover_some(handler) - Pattern-matching recovery with Option (returns Some to recover, None to propagate)
  • .fallback(value) - Provide default value on any error
  • .fallback_to(effect) - Try alternative effect on any error

• Predicate-based error matching - Uses stillwater's Predicate trait for composable error conditions

  • Integrate with existing predicate combinators (.and(), .or(), .not())
  • Build sophisticated error handling logic declaratively
  • Type-safe error inspection without exposing implementation details

• Common use cases enabled:

  • Cache fallback strategies (recover from cache miss only)
  • Retry on transient errors (network timeouts, rate limits)
  • Graceful degradation for non-critical failures
  • Multi-tier fallback chains (cache → database → default)
  • Conditional recovery based on error severity or type

• Zero-cost abstraction - All recovery combinators compile to concrete types

  • No heap allocations required
  • Stack-allocated combinator types
  • Property tests verify zero-cost semantics

• New example - examples/recover_patterns.rs (450+ lines)

  • 11 comprehensive examples covering all recovery patterns
  • Real-world scenarios: multi-tier caching, degraded mode, API fallback
  • Predicate composition patterns
  • Chaining multiple recovery strategies

Bifunctor Interface for Validation (Spec 041)

• Bimap combinators - Transform both success and error channels simultaneously

  • .bimap(f_err, f_success) - Standard bifunctor operation (error first convention)
  • .bimap_success_first(f_success, f_err) - Ergonomic variant (success first for readability)
  • .bimap_ref(&f_err, &f_success) - Non-consuming reference version for inspection

• Fold combinators - Catamorphisms to collapse Validation into single values

  • .fold(on_failure, on_success) - Standard fold (error first)
  • .fold_success_first(on_success, on_failure) - Alternative ordering
  • .fold_ref(&on_failure, &on_success) - Non-consuming version
  • .fold_with_seed(seed, f_err, f_success) - Generalized fold with accumulator for complex reductions

• Unwrap utilities - Safe value extraction with error handling

... (truncated)

Commits

• eaf8f40 fix: rename enum variants to avoid clippy warnings
• b079489 update changelog for 0.13.0 release
• 389c279 increment to 0.13.0
• fead5d8 refactor: remove dead code from recover_patterns example
• a3ae568 docs: update README and guide for error recovery combinators
• 70a2e63 docs: add comprehensive recover patterns example
• 86adb20 Merge branch 'prodigy-workflow-1764395677698'
• e0db43b feat: implement spec 042 - free function constructors documentation
• 5bcf4ab Merge branch 'prodigy-workflow-1764391685262'
• 77dbb0e style: apply automated formatting and lint fixes
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)