Put the header search box in the menu row, and stop saying "Search"

The header search was a band of its own under the menu; now it floats at
the right end of the menu row and only gets a thin bar when the header
has no menu. The forms are a single input — Enter and the phone
keyboard's search key submit a one-field form everywhere — with the
placeholder as the label, side boxes start without a heading, and the
results page shows a box only when no module does, so a page no longer
reads "Search" a dozen times.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sd8UPWrvyYCLj97JexNw3A

1 files changed, 7 insertions, 3 deletions

diff --git a/AGENTS.md b/AGENTS.md
index 5e94b3d..3959498 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -295,9 +295,13 @@ internal/web/         server.go (host router, middleware, render helpers)
   and `blog/tag.html`); the two modules are `tags` (by use, `count`) and
   `tagcloud` (alphabetical, `cloudSizes` → `tc-1…tc-5`).
 - **Search** (`web/search.go`, `handleBlogSearch`, `GET /search?q=&p=`,
-  `blog/search.html`): the `search` module is a plain GET form (header bar or
-  side box, `searchform` in `layouts/blog.html`; the results page shows one
-  too). `searchPattern` turns the query into the regex both Postgres and Go
+  `blog/search.html`): the `search` module is a plain GET form of one input
+  (`searchform` in `layouts/blog.html`; Enter submits, the placeholder is the
+  label, so "Search" is not repeated all over the page). In the header it is
+  rendered inside the menu module's row, floated right (`Layout.HeaderMenu/
+  HeaderSearch`), and gets its own thin bar only when the header has no menu;
+  in a column it is a box with an optional heading. The results page shows a
+  box of its own only when no module does (`Layout.HasSearch`). `searchPattern` turns the query into the regex both Postgres and Go
   run: words `regexp.QuoteMeta`'d and joined with `.*`, so the reader's words
   are literal, case does not matter (`~*` / `(?is)`) and spaces mean
   "anything in between", in order. `SearchPublishedPosts` matches it against