[RaviTejaKNTS]

What this does

Owner-requested changes to the ad-network pages. They stay unpublished (404) in production; this PR publishes nothing.

Lists and layout

• Network and niche pages sort sites by traffic by default: traffic group, then oldest domain, then domain. A–Z stays in the sort menu.
• The niche column and filter show on every network with sorted sites. Before, they showed only at 80% coverage, which hid them on Mediavine, Raptive and Ezoic.
• Network pages drop the "rank among networks" and "biggest publishers" charts. Domain age gets its own row, and the platforms legend shows the top four, then Other and Unknown. Traffic labels read "top 10k".
• The niches index drops the niche-size treemap; its table already shows the counts.
• The Joining tab no longer repeats "Who can join …?".

Content (MDX)

• 44 network side columns rewritten with practical questions, sourced from content_docs/ad-networks/research.
• Help sections below the directory home, stats, niches index and checker. The methodology is on the directory home and stats only.

Fixes

• The stats page timed out on large data. Its queries were reshaped, with two small partial indexes (migration 20261020174015, about 2.4 MiB, bounded by lock_timeout 5s and statement_timeout 60s).
• The ad network checker no longer aborts its request on unmount; that abort caused a dev overlay AbortError.
• The ad-network data cache key moves to v14, so first pages pick up the new availability.

Not in code

• Titles, H1s and descriptions for all 68 ad-network pages were rewritten in the development database through the publisher. Production plans are ready for the publication round.

Checks

• npm run quality: 108 passed. Ad-network focused suite: 172 passed. MDX check passed.
• Four Sol review rounds. All findings were fixed, including content accuracy against the verifier code and research, and migration safety on production.

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