fix(planning): fix interview id-chip wrapping, Summary table word breaks and header height at 390 px #8085

Refs: #7756

Agent Brief

Type: Bug
Summary: At phone width, id chips and Summary table words stay whole, and the question title shows in the first screen.

Current behavior:

• The id chip style lets a chip break anywhere, so an id splits across lines: in Activity at 425 px and in Notes at 390 px.
• At 390 px the Summary Decisions table breaks words mid-word.
• At 390x844 the header is 244 px tall and pushes the question title below the first screen.

Desired behavior:

• An id or id range such as Q12 or Q4-Q9 never splits across lines. A chip holding several ids may wrap between ids.
• Summary Decisions table cells wrap only at word boundaries. A token too long for its cell scrolls inside the table's own container, never the page.
• At 390x844, after load, the question title is fully visible with no scrolling.
• Layout at 1440 px is unchanged.

Key interfaces:

• The id-chip style (the chip inside question meta, Activity and Notes).
• The Summary Decisions table.
• The header under the phone breakpoint.

Acceptance criteria:

• The diff adds a UI check at 390x844 and at 425 px: every id chip in Activity and Notes renders each id on one line.
• The diff adds a UI check at 390 px: no Summary Decisions table cell has a computed word-break: break-all or overflow-wrap: anywhere, and the document has no horizontal scroll.
• The diff adds a UI check at 390x844: the question title's bounding box bottom is at most 844 with scroll at 0.
• scripts/check-changelog-fragments.sh passes, with one planning patch fragment added.
• CI's test-bash passes on the PR.

Out of scope:

• Flyout overlap and Notes collapsing (sibling items).
• Mobile rail tap behavior (fix(planning): rebalance the interview page layout and add a someone-else-decides deferral #7278), touch-target sizes and contrast (fix(planning): fix interview page contrast, touch targets and unexplained labels #7755).

Refs #7756

This was generated by AI during backlog shaping. Split from #7756 so each piece fits the lane's run time; the owner approved this split in an attended backlog-shaping session on 2026-10-18.