docs(checkpoint): feed author resolution at a76d8df (2026-09-23)

CHECKPOINT-encryption.md

@@ -1,3 +1,54 @@
+# Checkpoint — feed shows author names/pictures (2026-09-23 PM)
+
+## Where things are
+- Project: `/home/avi/Projects/Keynctr`
+- Branch: `master` @ **`a76d8df`** ("feat(feed): resolve author names and
+  pictures from kind-0 metadata"). Previous: `cd8b671` (checkpoint),
+  `6f4dbb2` (kind-0 via signer).
+- Working tree: clean for tracked files. Untracked intentionally NOT
+  committed: `COSMIC_THEME.md`, `KeynectrAppIconPossibility02.jpeg`,
+  `deferred/` (stays deferred).
+- Release binary: **rebuilt at `a76d8df`**. Renderer rebuilt via
+  `npm run build`. Restart Electron before retesting.
+
+## What was completed this session
+1. **Feed author resolution (`a76d8df`)**: the feed previously rendered
+   bare npubs + initial avatars — it never looked up author metadata
+   anywhere. After collecting notes, the backend now runs ONE batched
+   kind-0 lookup for all distinct authors (8s cap, best-effort; failures
+   keep the npub fallback) and attaches the newest `author_name`
+   (display_name preferred) + `author_picture` per note. FeedScreen renders
+   the name (full npub on hover) and the picture avatar. Unit test covers
+   newest-wins, display_name preference, and blank→fallback; new
+   FeedScreen test covers name+picture rendering.
+2. Note: anyone WITHOUT published kind-0 (like the user's own new identity
+   until "Publish name" runs) still shows as npub — correct fallback, not
+   a bug.
+- Verification (all green at `a76d8df`): `cargo test` **213 unit + 4 e2e
+  passed / 0 failed**, `cargo clippy --all-targets` 0 warnings,
+  `cargo fmt --check` clean, `cargo build --release` green; frontend
+  `npm test` **121 passed**, `typecheck`, `lint`, `format:check`,
+  `electron:build`, `build` clean.
+
+## Commits added (newest first)
+- `a76d8df` feat(feed): resolve author names and pictures from kind-0
+  metadata
+
+## How to resume / reproduce
+- Restart Electron → Feed: notes from authors WITH kind-0 metadata now
+  show names + pictures; others still show npubs.
+- To see your own name on your posts: Profiles → Publish name (Amber
+  approval) → wait ~1 min → Feed refreshes with your name/picture.
+
+## Outstanding / next steps
+1. **Live "Publish name" + live sign/publish through real Amber.**
+2. **NIP-46 session restore on startup.**
+3. Prune the 11 stale profileless `nip46_connections` rows (cosmetic).
+4. Remote picture/nip05 edits, KDF upgrade (Step 5), rename pass
+   (Step 7) — unchanged.
+
+---
+
 # Checkpoint — kind-0 publishes through Amber; name goes network-wide (2026-09-23 PM)
 
 ## Where things are