fix(ux): optimize event lists and fix editor line wrapping

- Implemented 'Details' toggle in Session lists to defer expensive presenter/file sub-component renders, improving initial hydration speed.
- Fixed line-wrapping for long lines in Journals Editor (both plain textarea and CodeMirror).
- Updated TODO.md and GEMINI.md to reflect Journals standardization and performance optimizations.

src/lib/app_components/e_app_codemirror_v5.svelte

@@ -173,17 +173,13 @@
         /* overflow: auto; */
         /* background-color: var(--cm-background); */
 
-        /* text-wrap: normal; */
-        /* text-wrap: balance; */
-        /* text-wrap: wrap; */
-        /* text-wrap: break-word; */
+        text-wrap: wrap;
+        overflow-wrap: break-word;
     }
     .codemirror-wrapper :global(.cm-editor) {
         /* font-size: .8rem; */
-        /* text-wrap: normal; */
-        /* text-wrap: balance; */
-        /* text-wrap: wrap; */
-        /* text-wrap: break-word; */
+        text-wrap: wrap;
+        overflow-wrap: break-word;
 
         /* max-width: 100%; */
         /* max-height: 100%; */