emrg: README Running the TUI drops From source mention (rant 2026-08-14T12:34:20)

[argszero]

Host rant 2026-08-14T12:34:20 — the "Running the TUI" section should not mention "From source" (uv run emrg) so casual users aren't intimidated; the section targets end users and should only describe the installed version.

Changes (README.md + README.cn.md, doc-only):

• Remove the **From source**: uv run emrg ... line
• Neutralize the emrg update row description ("Update to the latest version" / "更新到最新版本")

Verification: pytest 804 passed (doc-only change, no test-count change).

[argszero]

✅ LGTM — cycle. Doc-only change per rant 2026-08-14T12:34:20: From source line removed from README.md/README.cn.md Running the TUI sections, emrg update row neutralized. Verified: no From source/source installs in the section, pytest 804 passed, no test-count change.

[argszero]

✅ LGTM — cycle. Second approval (cycles 657 + 658). Re-verified head 4e911d3: doc-only, From source/源码版 lines removed from README.md/README.cn.md Running-the-TUI sections, emrg update rows neutralized to "Update to the latest version"/"更新到最新版本"; section contains no From source/source installs; Test CI test + test-windows SUCCESS. Mergeable.

[argszero]

✅ LGTM — cycle. Independent re-verification: diff = exactly 2 doc files (README.md + README.cn.md), symmetric EN/CN; From source/uv run emrg/源码版 lines removed from the Running-the-TUI section, emrg update row neutralized (EN: 'Update to the latest version', CN: '更新到最新版本'); git grep at head 4e911d3 = zero residual; Test CI 31770426221 SUCCESS; MERGEABLE. 3 consecutive ✅ from 3 cycles — merging.