Require replay and codec defects to grow the regression corpora

[rmcdaniel]

Every confirmed replay or payload-codec defect must leave behind the smallest durable reproducer in the shared regression evidence before the fix can complete.

Acceptance:

• A replay defect adds a minimal history or command-sequence fixture that fails on the defective revision and passes with the fix.
• A codec defect adds a minimal cross-language wire fixture that preserves the affected value, type, framing, and failure policy across PHP, Python, and Rust as applicable.
• Duplicate fixtures are rejected, existing fixtures remain immutable unless their protocol version is explicitly superseded, and corpus counts can only stay equal for changes unrelated to replay or codecs.
• The completion gate can distinguish a real corpus addition from a test that only repeats implementation details.
• Current replay and Avro corpora continue to pass through official language bindings, including the official Apache Avro packages and the approved optimized Python binding.
• Contributor guidance states this requirement without relying on exact prose-copy tests.

Required source targets

durable-workflow/.github@main
durable-workflow/sdk-php@main
durable-workflow/sdk-python@main
durable-workflow/sdk-rust@main
durable-workflow/server@main
durable-workflow/workflow@v2

[rmcdaniel]

Cross-repository landing evidence (generated from trusted implementation pull requests or authenticated protected-branch completion records):
Completion source: 528842d5add224871bf1d891ccf0ca8d2f8edb13

Target	Latest attempt	Bound provenance	Landing	Required qualification	State
durable-workflow/.github@main	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	528842d5add2	Passed: Control-plane source qualification (check run 30481197243); cited qualification run 30481197243	complete
durable-workflow/sdk-php@main	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	e92c93c98db4	Passed: Target branch qualification (check run 30480887254); cited qualification run 30480887226	complete
durable-workflow/sdk-python@main	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	452b2fdf3905	Passed: Target branch qualification (check run 30468817164); cited qualification run 30468817177	complete
durable-workflow/sdk-rust@main	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	94fa2aa37d06	Passed: Target branch qualification (check run 30476067630); cited qualification run 30476073771	complete
durable-workflow/server@main	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	cfced2aa4659	Passed: PHPUnit feature suite (check run 30470740656); cited qualification run 30470741083	complete
durable-workflow/workflow@v2	Authenticated protected-branch completion record	Authenticated lifecycle-writer record; exact commit revalidated on protected branch	b94650f1b429	Passed: build (check run 30475137430); cited qualification run 30475138932	complete

Every declared target landing and required repository qualification is complete.

[rmcdaniel]

Completed in 528842d5add2 on main.

Required public qualification passed: https://github.com/durable-workflow/.github/actions/runs/30481197243

Required cross-repository target qualification passed:

• sdk-php:main at e92c93c98db4 (qualification)
• sdk-python:main at 452b2fdf3905 (qualification)
• sdk-rust:main at 94fa2aa37d06 (qualification)
• server:main at cfced2aa4659 (qualification)
• workflow:v2 at b94650f1b429 (qualification)