Page type-check: noImplicitAny, every parameter and variable typed (#235)

290 places the type-check could not see into, mostly parameters, now typed with web/src/types.ts
(feeds, items, files, accounts, log lines, the directory's rows and items). Two changes run
differently in form only: the seek and volume inputs divide Number(value) where they divided
the string, and esc's table has a name. Null checks are #236.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/feedpage.ts

@@ -89,7 +89,7 @@ function sortHead(){
       `${on?`<span class="arr ${S.sort.dir}">${ICON.caret}</span>`:''}</button>`;
   }).join('')+'<span></span></div>';
 }
-function sortBy(col){
+function sortBy(col: string){
   const first=['published','size','kept'].includes(col)?'desc':'asc';
   S.sort={col,dir:S.sort.col===col?(S.sort.dir==='asc'?'desc':'asc'):first};
   try{ localStorage.setItem('ipx.sort',JSON.stringify(S.sort)); }catch{}
@@ -99,9 +99,9 @@ function sortBy(col){
 /// An OPML subscription's page lists the feeds inside it rather than items, but keeps
 /// every action a normal feed has -- it is still an ordinary feed entry underneath.
 // A Patreon creator split into its shows is drawn like an OPML, and named for what it is.
-const isPatreon=f=>/patreon\.com\//.test(f&&f.url||'');
+const isPatreon=(f: {url: string}|null)=>/patreon\.com\//.test(f&&f.url||'');
 
-function renderGroup(f,kids){
+function renderGroup(f: Feed,kids: Feed[]){
   const unread=kids.reduce((n,c)=>n+c.unread,0);
   const saved=kids.reduce((n,c)=>n+c.downloaded,0);
   const gone=kids.filter(c=>c.orphaned).length;
@@ -158,7 +158,7 @@ function renderGroup(f,kids){
   draw();
 }
 
-async function feedAction(a,f){
+async function feedAction(a: string,f: Feed){
   if(a==='scan'){
     spinStart(f.id);
     try{ await api('/api/fetch',{method:'POST',body:JSON.stringify({feed:f.id,force:true})}); }
@@ -177,7 +177,7 @@ async function feedAction(a,f){
   if(a==='dl') downloadLatestModal(f);
 }
 /// All Subscriptions' own buttons: a feed's, across every feed you read.
-async function allAction(a){
+async function allAction(a: string){
   if(a==='scanall') return scanAll();
   if(a==='readall'){
     const n=S.feeds.reduce((k,x)=>k+(x.unread||0),0);