[LydiaTools]

What changed

• Refine the English and Chinese opening around the moment a promising open request turns into a harder question: what is still worth solving?
• Keep the personal, story-led voice while making GapCue's role and first browser action easier to grasp.
• Remove one repeated summary line; no product behavior or factual scope changed.

Verification

• Reviewed both language openings against the current product and links.
• git diff --check passed.
• Read back both files from the pushed branch; their Git blob hashes match the local files.