[sync-review] Fix upstream manifest-synced paths blocking stranske/Manager-Database#1683

[stranske]

Why

Consumer sync PR stranske/Manager-Database#1683 carries an unresolved Copilot review thread on manifest-synced scripts/langchain/issue_dedup.py. The upstream source in this repository must gain regression coverage for non-finite similarity scores so the next sync regeneration outdates that thread and the delivery PR can merge.

Scope

Add focused unit tests in Workflows for the new non-finite score handling branch in scripts/langchain/issue_dedup.py (NaN, positive infinity, negative infinity, and a valid result after them).

Non-Goals

• Changing the consumer PR directly; fixes land in Workflows main and propagate via sync.
• Altering production behavior beyond what the existing code already implements.

Tasks

• In tests/scripts/test_issue_dedup.py, add regression coverage for non-finite similarity scores in scripts/langchain/issue_dedup.py: NaN, positive infinity, negative infinity, and a valid match after invalid scores.
• Run ./scripts/sync_templates.sh if the consumer template copy of scripts/langchain/issue_dedup.py is manifest-synced.

Acceptance Criteria

• pytest tests/scripts/test_issue_dedup.py -q passes, including the new non-finite score cases.
• Deliberate-break gate: remove the non-finite score guard in scripts/langchain/issue_dedup.py → the new test must FAIL → revert.

Implementation Notes

Review thread: stranske/Manager-Database#1683 on scripts/langchain/issue_dedup.py. Upstream source verified at that path in this repository.

[github-actions]

This issue is not yet agent-processable. See docs/AGENT_ISSUE_FORMAT.md.

Missing required sections: Tasks, Acceptance Criteria

Advisory:

• 1 cited path(s) do not exist yet: stranske/Workflows/scripts/langchain/issue_dedup.py — expected when a task creates them; check for typos otherwise.

Recommended but absent: Why, Scope, Implementation Notes, Non-Goals

Dispatched the Agents Issue Optimizer format phase (attempt 1 of 3).

[agents-workflows-bot]

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[github-actions]

⚠️ Workflow failed

The agents-issue-optimizer workflow encountered an error.

Details: View workflow run

Format validation report:

This issue is **not yet agent-processable**. See `docs/AGENT_ISSUE_FORMAT.md`.

- `Tasks` item must name a concrete file, symbol, path, config key, job, or command: `_Not provided._`.
- `Acceptance Criteria` names no test, runnable command or observable verification gate — Definition of Ready / Quality Bar §2 requires one.

_Advisory:_
- 1 cited path(s) do not exist yet: `stranske/Workflows/scripts/langchain/issue_dedup.py` — expected when a task creates them; check for typos otherwise.

[github-actions]

This issue is not yet agent-processable. See docs/AGENT_ISSUE_FORMAT.md.

Missing required sections: Tasks, Acceptance Criteria

Advisory:

• 1 cited path(s) do not exist yet: stranske/Workflows/scripts/langchain/issue_dedup.py — expected when a task creates them; check for typos otherwise.

Recommended but absent: Why, Scope, Implementation Notes, Non-Goals

Dispatched the Agents Issue Optimizer format phase (attempt 2 of 3).

[github-actions]

⚠️ Workflow failed

The agents-issue-optimizer workflow encountered an error.

Details: View workflow run

Format validation report:

This issue is **not yet agent-processable**. See `docs/AGENT_ISSUE_FORMAT.md`.

- `Tasks` item must name a concrete file, symbol, path, config key, job, or command: `_Not provided._`.
- `Acceptance Criteria` names no test, runnable command or observable verification gate — Definition of Ready / Quality Bar §2 requires one.

_Advisory:_
- 1 cited path(s) do not exist yet: `stranske/Workflows/scripts/langchain/issue_dedup.py` — expected when a task creates them; check for typos otherwise.

[github-actions]

This issue is not yet agent-processable. See docs/AGENT_ISSUE_FORMAT.md.

Missing required sections: Tasks, Acceptance Criteria

Advisory:

• 1 cited path(s) do not exist yet: stranske/Workflows/scripts/langchain/issue_dedup.py — expected when a task creates them; check for typos otherwise.

Recommended but absent: Why, Scope, Implementation Notes, Non-Goals

Dispatched the Agents Issue Optimizer format phase (attempt 3 of 3).

[github-actions]

⚠️ Workflow failed

The agents-issue-optimizer workflow encountered an error.

Details: View workflow run

Format validation report:

This issue is **not yet agent-processable**. See `docs/AGENT_ISSUE_FORMAT.md`.

- `Tasks` item must name a concrete file, symbol, path, config key, job, or command: `_Not provided._`.
- `Acceptance Criteria` names no test, runnable command or observable verification gate — Definition of Ready / Quality Bar §2 requires one.

_Advisory:_
- 1 cited path(s) do not exist yet: `stranske/Workflows/scripts/langchain/issue_dedup.py` — expected when a task creates them; check for typos otherwise.