As a developer, I want to fix empty official_doc_urls in 9 nabledge-1.4 knowledge files so that S11 checks pass

[kiyotis]

Situation

9 nabledge-1.4 knowledge files have an empty string ("") in their official_doc_urls array, causing Phase C S11 (URL not https) check failures.

Root cause: _compute_official_url in phase_b_generate.py returns "" when the RST file path does not contain nablarch-document/ja/. This empty string is passed to Phase B as {OFFICIAL_DOC_BASE_URL}. Phase B's Step 6 instructs the model to start official_doc_urls with {OFFICIAL_DOC_BASE_URL}, so the empty string is included in the output array as-is.

An empty URL is not an error state — it means no public URL exists for that file. The correct output is an empty array [], not [""].

Pain

S11 check failures on these 9 files reduce confidence in quality metrics and cause false negatives in Phase C results.

Benefit

• official_doc_urls correctly represents the absence of a URL as [] rather than [""]
• S11 check passes for these 9 files

Success Criteria

• _compute_official_url returns None or is omitted from the prompt when no URL exists, so Phase B does not include an empty string in official_doc_urls
• All 9 affected files have official_doc_urls with no empty strings
• Phase C S11 check passes for all 9 files

Affected Files

File ID	Empty URL count
testing-framework-03_Tips--s10	1
web-application-04_validation--s1	1
libraries-07_FormTag--s16	1
libraries-01_Log--s1	1
libraries-04_ObjectSave--s5	1
about-nablarch-concept--s13	1
web-application-web_gui--s1	1
workflow-WorkflowProcessElement--s1	1
ui-framework-ui_development_workflow--s1	1