Add source filter reset link on bounties page

[xiefuzheng713-alt]

Refs #845

What changed

• Added a clear_source_filter_url to the public bounties page context.
• Shows a Clear source filter link when the list is filtered by source repo and/or issue number.
• Preserves other contributor filters such as status, query text, sort, limit, and availability when clearing only the source lane.
• Added direct regression coverage for preserving limit and availability after CodeRabbit review feedback.

Why

Source-filtered bounty list links are useful for routing contributors from a GitHub issue to matching public bounty rows, but the page previously only described the active source filter. This gives contributors a direct way back to the broader filtered bounty list without manually editing the URL.

Validation

• uv run --python 3.12 --extra dev python -m pytest tests/test_bounty_pages.py tests/test_public_routes.py -q -> 25 passed, 1 existing Starlette/httpx warning
• uv run --python 3.12 --extra dev ruff check app/public_routes.py tests/test_public_routes.py tests/test_bounty_pages.py -> passed
• uv run --python 3.12 --extra dev ruff format --check app/public_routes.py tests/test_public_routes.py tests/test_bounty_pages.py -> 3 files already formatted
• uv run --python 3.12 --extra dev mypy app/public_routes.py -> success
• uv run --python 3.12 --extra dev python scripts/docs_smoke.py -> docs smoke ok
• git diff --check origin/main...HEAD -> clean
• git merge-tree --write-tree origin/main HEAD -> clean tree 38fcf622f7e1a428f17a13830dda90e828042614

Scope: public bounty list contributor navigation only. No ledger, wallet, treasury, payout, proposal execution, admin-token behavior, private data, exchange, bridge, cash-out, or MRWK price behavior changed.

Summary by CodeRabbit

• New Features
  • Added a "Clear source filter" link on the bounties page. When a repository or issue number filter is applied, users can remove it while preserving other active search preferences (search text, status, sort, limit, and availability).
• Tests
  • Updated and added tests to verify the clear-source behavior and that other filters are preserved.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 64b7b1f2-402b-4a55-894a-922e4099c6a0

📥 Commits

Reviewing files that changed from the base of the PR and between 9772d59 and 573d594.

📒 Files selected for processing (4)

• app/public_routes.py
• app/templates/bounties.html
• tests/test_bounty_pages.py
• tests/test_public_routes.py

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📝 Walkthrough

Walkthrough

Adds a backend-generated clear_source_filter_url to bounties context and an inline "Clear source filter" link in the bounties template; tests were updated/added to assert the URL is present and preserves other filters while clearing repo/issue_number.

Changes

Clear source filter

Layer / File(s)	Summary
Clear source filter URL generation and rendering app/public_routes.py, app/templates/bounties.html, tests/test_public_routes.py, tests/test_bounty_pages.py	public_bounties_context() adds clear_source_filter_url that clears repo and issue_number while preserving q, status, sort, limit, and availability. Template renders an inline "Clear source filter" link when a source filter is active. Tests updated to include the new field and to assert the link renders and that other filters are preserved.

Possibly related PRs

• ramimbo/mergework#736: Establishes the foundational repo/issue_number source filter state and context that this PR builds the clear-filter link on top of.
• ramimbo/mergework#394: Prior work modifying public_bounties_context() and bounties test coverage for source filter URL handling.

🚥 Pre-merge checks | ✅ 6

✅ Passed checks (6 passed)

Check name	Status	Explanation
Title check	✅ Passed	Title clearly and concretely describes the main change: adding a source filter reset link to the bounties page UI.
Description check	✅ Passed	Description includes all required sections: summary of changes, evidence/reasoning, validation with command outputs, and scope clarification.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Mergework Public Artifact Hygiene	✅ Passed	PR contains no investment, price, cash-out, or fabricated payout claims. Technical UX feature adding clear-filter link; no security details disclosed.
Bounty Pr Focus	✅ Passed	All four expected files contain claimed changes. Implementation adds clear_source_filter_url preserving other filters. Scope limited to bounties; no ledger, wallet, or treasury modifications.

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[coderabbitai]

Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: f3ddad72-8f03-41a9-a032-4510e09af0bd

📥 Commits

Reviewing files that changed from the base of the PR and between d4d0e48 and 9772d59.

📒 Files selected for processing (4)

• app/public_routes.py
• app/templates/bounties.html
• tests/test_bounty_pages.py
• tests/test_public_routes.py

[mauricemohr88-debug]

Current-head review for #838 on 573d594dad8675664ae84913dca020ae5d4d3abd.

Evidence checked:

• Inspected app/public_routes.py; clear_source_filter_url clears only repo and issue_number while preserving status, query, sort, limit, and availability through the existing _bounties_page_url helper.
• Inspected app/templates/bounties.html; the source-filter notice now renders a clear-source link only when a source filter is active.
• Inspected tests/test_bounty_pages.py and tests/test_public_routes.py; coverage includes the simple source-filter page link and preservation of other filters including limit and availability.
• Confirmed GitHub reports PR #894 open, current head 573d594dad8675664ae84913dca020ae5d4d3abd, merge state clean, and both visible checks successful.
• Ran uv run --python 3.12 --extra dev python -m pytest tests/test_bounty_pages.py tests/test_public_routes.py -q: 25 passed, 1 existing Starlette warning.
• Ran uv run --python 3.12 --extra dev ruff check app/public_routes.py tests/test_public_routes.py tests/test_bounty_pages.py: passed.
• Ran uv run --python 3.12 --extra dev ruff format --check app/public_routes.py tests/test_public_routes.py tests/test_bounty_pages.py: 3 files already formatted.
• Ran uv run --python 3.12 --extra dev mypy app/public_routes.py: success.
• Ran uv run --python 3.12 --extra dev python scripts/docs_smoke.py: docs smoke ok.
• Ran git diff --check origin/main...HEAD and git merge-tree --write-tree origin/main HEAD: clean.

No blocker found. The change is narrow contributor navigation, preserves existing filters correctly, and does not touch ledger, wallet, treasury, or payout behavior.