demo(words): enrich status bar with char count + selection + dynamic link/commit (F4.5b)

Before: 'Optional editor · 64 words · none'

After:  'Optional · 64 words · 453 chars · none'  (no link, no commit)
        'Required · 64 words · 453 chars · range · https://...'  (selection + link)
        'Optional · 64 words · 453 chars · none · save'  (after commit)

- Drops the redundant 'editor' suffix; the surface is already an editor.
- Adds char count from plainText.length — useful for size limits.
- Adds the existing selectionState (none/collapsed/range) inline.
- Splits link/commit into separate optional segments instead of
  collapsing them into one slot.

Demo-only change in +page.svelte. The eidos Words.Status wrapper
still passes children through unchanged — enriching the eidos default
status snippet itself would require Words provider to expose
wordCount/charCount, which is a larger refactor.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/routes/uix/components/words/+page.svelte

@@ -1063,9 +1063,19 @@
 					<Words.HiddenInput />
 					{#if showStatus}
 						<Words.Status>
-							{invalid
-								? 'Invalid content'
-								: `${required ? 'Required editor' : 'Optional editor'} · ${wordCount} words · ${selectedLink ? selectedLink.href : lastCommit}`}
+							{#if invalid}
+								Invalid content
+							{:else}
+								{required ? 'Required' : 'Optional'}
+								· {wordCount} words
+								· {plainText.length} chars
+								· {selectionState}
+								{#if selectedLink}
+									· → {selectedLink.href}
+								{:else if lastCommit !== 'none'}
+									· {lastCommit}
+								{/if}
+							{/if}
 						</Words.Status>
 					{/if}
 				{/snippet}