docs(pi): migrate runtime to @earendil-works@0.80.3; update dual-mode gate eval

- live pi repointed 0.73.1 (@mariozechner, frozen) -> 0.80.3 (@earendil-works);
  validated via API/RPC surface diff (stable+additive) + model-matrix smoke
  (GLM 5.2 new+resume CHAINED)
- PROJECT_STATE: item 6 migration note (supersedes the 0.79.4 references)
- dual-mode gate eval: integrate review points (#3,#5,#7,#8,#9,#10) and flip #1
  to ctx.mode === "tui" (0.80.3 exposes ctx.mode: tui|rpc|json|print)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

PROJECT_STATE.md

@@ -255,6 +255,16 @@ Full session management modeled on Claude's UI, all three layers:
 5. **Resolved: settings use `zai/glm-5.2`/medium** (not deepseek-flash); GLM 5.2 drives F1
    fine, just slowly (~3-4 min, ~50+ reads). To tell a truly stalled Pi from a merely-slow one,
    check its sockets/children. Memory: `thothii-glm52-f1-slow-not-stuck.md`.
+6. **DONE — Pi migrated to `@earendil-works/pi-coding-agent@0.80.3` (2026-07-04).** The old
+   scope `@mariozechner/pi-coding-agent` is frozen at 0.73.1; every release ≥0.74 lives under
+   the new scope `@earendil-works` (latest 0.80.3). The live `pi` (`~/.local/bin/pi`) was
+   repointed to 0.80.3. Validated by an API/RPC-surface diff (0.73.1→0.80.3: `ExtensionUIContext`
+   byte-identical, `rpc-types` additive-only, `createDialogPromise` + provider-registration API
+   unchanged) **plus** a live `model-matrix` smoke (GLM 5.2, `new`+`resume` both `CHAINED`,
+   full RPC event vocabulary incl. `extension_ui_request` intact). Notable: 0.80.3 adds
+   `ctx.mode: "tui"|"rpc"|"json"|"print"` (a proper mode discriminator; the earlier `0.79.4`
+   references above are superseded). Rollback: the old package is still on disk — repoint the
+   symlink to `@mariozechner/.../dist/cli.js`. Memory: `thothii-pi-earendil-migration.md`.
 
 ## Where design history lives
 - Specs: `docs/superpowers/specs/` · Plans: `docs/superpowers/plans/`