Release winTerm v1.0.1 with self-signed installer

[HelloThisWorld]

Summary

Prepare winTerm v1.0.1 with the independent HelloThisWorld.winTerm package identity, a documented self-signed installer, and a direct README download entry.

Related issues

N/A

Detailed changes

• removes every tracked reference to the previous package-identity name;
• updates application, MSIX, PowerShell module, Workspace metadata, release notes, WinGet metadata, and publishing automation to 1.0.1;
• extends the local build wrapper to produce final-name self-signed Release assets;
• publishes the final x64 MSIX together with its public CER, INSTALL.txt, checksums, notices, SBOMs, symbols, metadata, and GitHub provenance;
• verifies the embedded MSIX signature against the published certificate before and after Release publication;
• adds the v1.0.1 download page and version badge at the top of the README;
• preserves the existing public v1.0.0 Tag without moving or overwriting it.

Validation performed

• scripts/winterm/verify-version.ps1 — passed on Windows PowerShell 5.1;
• scripts/winterm/test.ps1 -Suite Smoke -Configuration Release -Platform x64 — passed;
• all 14 changed PowerShell scripts parsed without errors;
• WinGet and stable-update manifest generators produced the expected v1.0.1 identity, filenames, URLs, and versions in disposable test directories;
• git diff --check — passed;
• tracked legacy identity search — zero matches.

Compiled Release builds, relevant native tests, MSIX generation, and the exact-package signature path are left to the required GitHub-hosted Windows PR checks. The exact-tag Release workflow will run only after this PR passes, merges, and v1.0.1 is created on the merge commit.

Checklist

• The change is focused and does not include unrelated formatting.
• Tests were added or updated where appropriate.
• All tests claimed above actually ran and passed.
• User-facing behavior and limitations are documented in this repository.
• Version or schema changes include compatibility and migration notes.
• Package identity, winterm.exe, and Microsoft Terminal coexistence remain isolated.
• No command text, terminal output, clipboard content, credentials, or private paths are logged.
• New source and script files contain the appropriate MIT license header.
• I did not include generated build output, secrets, certificates, or local absolute paths.