fix(tui): give every table one shared column scale

[notgitika]

Gives every TUI table one shared column scale.

• cap the flexible column at 40 cells so leftover width becomes right margin instead of a gap between an identifier and its metadata
• one width per kind of value (timestamp 16, status 20, version 7, count 8) in columnPresets.ts
• right-align numerics, center the narrow live/target flags
• drop the Runtime id suffix column; the ID already contains the name

[agentcore-devx-automation]

Claude Security Review: no high-confidence findings. (run)

[agentcore-devx-automation]

AgentCore Harness Review

Verdict: Looks good

This is a nicely scoped UI refactor:

• The new columnPresets.ts (STATUS_WIDTH, TIMESTAMP_WIDTH, VERSION_WIDTH, COUNT_WIDTH, NUMERIC_ALIGN, FLAG_ALIGN) is applied consistently across every picker, and the previously drifting status widths (12–22) are unified.
• FLEX_MAX_WIDTH = 40 and the per-column maxWidth override are threaded correctly through computeColumnWidths, and DataTable truncates via cli-truncate, so the cap won't cause overflow. The updated columnWidths.test.ts covers the new ceiling and the leftover-as-right-margin behavior, and the PaginatedTablePicker.test.tsx change to allow totalWidth <= terminalWidth correctly reflects the new invariant.
• Collapsing runtime name + id suffix into a single id column is reasonable given that agentRuntimeId embeds the name (orders-Ab12Cd34Ef); the /-filter still matches by name substring, and screen tests were updated in lockstep. Test fixtures now use realistic ID shapes.
• No new user-facing features/telemetry surface here, and tests continue to render real components with a TestCoreClient rather than adding mocks.

Nothing blocking — LGTM.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.05%. Comparing base (da28031) to head (152e3e9).

Additional details and impacted files

@@            Coverage Diff            @@
##           refactor    #2217   +/-   ##
=========================================
  Coverage     97.04%   97.05%           
=========================================
  Files           544      545    +1     
  Lines         37536    37562   +26     
=========================================
+ Hits          36428    36454   +26     
  Misses         1108     1108           

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