Icod.Terminal 1.0.0 — Stable Release Promotion

[uniblab]

Promotes the qualified Icod.Terminal 1.0.0-rc1 contract to stable 1.0.0 from exact green main SHA dfa149c604aaf860a18923d23999b045ab98532d.

This PR is intentionally behavior- and API-neutral. Production C# files change only by the required LGPL source-header addition; no executable statements, public signatures, enum values, protocol behavior, or runtime semantics change. The frozen public API fingerprint remains unchanged.

Stable version promotion

• clears VersionSuffix, making Version / PackageVersion exactly 1.0.0;
• keeps AssemblyVersion at 1.0.0.0;
• rewrites PackageReleaseNotes for stable 1.0 and pins release/migration links to v1.0.0.

Stable release documentation

• adds curated docs/releases/1.0.0.md;
• adds a stable 1.0.0 entry to CHANGELOG.md while retaining the published rc1 history;
• promotes the root/package README to stable 1.0.0 installation/status and immutable v1.0.0 documentation links;
• pins the README hero image to v1.0.0 so the package presentation cannot drift with main;
• updates docs/Migration-to-1.0.md so stable 1.0 is the migration destination;
• updates docs/Compatibility-and-Versioning.md so the stable baseline, not rc1, is the permanent authority;
• adds docs/Licensing.md as the permanent library/executable licensing authority;
• updates the root development roadmap to stable 1.0 while preserving the completed rc1 roadmap as historical qualification evidence;
• explicitly documents stable scope boundaries: PTY/process hosting remains orthogonal, built-in provider support is Windows/Linux/macOS, unacknowledged emission is not terminal-side capability proof, DCurses 0.1.0 is a compatibility witness rather than exhaustive coverage, and generic hazardous vendor-command dispatch remains out of scope.

Stable public API baseline

Adds:

• docs/Public-API-Baseline-1.0.md;
• docs/Public-API-Baseline-1.0.sha256.

Stable 1.0 adopts the exact rc1 fingerprint:

633 lines
77 exported public types
32 public enums / 242 enum values
124 public methods
144 public properties
13 public constructors
SHA-256 8b213bb287e14729b07f0e640c8c1b1a5aa36b26f867f1e97604fb86fded36e5

VerifyPublicApiBaseline.ps1 treats that stable baseline as the authority. Any generated drift is a release blocker rather than an automatic baseline update.

GPL/LGPL source-header closure

• Icod.Terminal library source and the root Icod.Terminal.csproj use the required LGPL-3.0-or-later header;
• executable/test/sample/validation projects and their C# sources use the required GPL-3.0-or-later header;
• every .cs header identifies the owning assembly, gives a one-line program description, and carries Copyright (C) 2026 Timothy J. Bruce <uniblab@hotmail.com>;
• every .csproj begins with <?xml version="1.0" encoding="utf-8"?>, followed immediately by the corresponding XML-comment license header and then <Project ...>;
• the published Icod.Terminal NuGet package remains LGPL-3.0-or-later; GPL repository executables do not change the library package license;
• packaging/VerifyLicenseHeaders.ps1 validates the exact expected template for every tracked .cs and .csproj file;
• that gate runs in the single package-candidate path used by PR, main, distribution, and tag validation, and in local all / validate builds.

The root LICENSE contains the LGPLv3 terms and the incorporated GPLv3 terms referenced by those headers.

Stable release-line package gates

Candidate-era implementation names are removed from the permanent path:

• VerifyRc1Package.ps1 -> VerifyReleaseLinePackage.ps1;
• VerifyDCursesRc1Package.ps1 -> VerifyDCursesPackage.ps1;
• package-rc1-smoke -> package-release-line-smoke;
• dcurses-rc1-package-acceptance -> stable dcurses-package-acceptance project metadata, reusing the existing hardening-soak program;
• package shard rc -> release / 1.0 release line in PR, main, manual distribution, and tag workflows.

The rc1 T-series documents and published rc1 baseline remain unchanged as historical evidence.

Exact validation

Final stable-promotion/licensing-closure head:

17360a8bd8c3a288c7d8d399084d592f673b8ae5

PR workflow #976 (34196455757) is fully green:

• Runtime Windows — green;
• Runtime Linux — green;
• Runtime macOS — green;
• Package candidate / exact GPL-LGPL header verification / stable API freeze — green;
• Package Foundation — green;
• Package Presentation — green;
• Package Semantic and hardening — green;
• Package 1.0 release line — green;
• final validated package artifact — green.

The package-candidate gate proves the exact source/project header templates and the unchanged stable API fingerprint before package construction. The release-line shard revalidates the packed stable README, curated 1.0.0 notes, changelog/version links, generated XML, and fresh net8/net9/net10 package consumer.

There are no unresolved review threads. PR #34 remains open, non-draft, and mergeable.

Post-merge gate

After merge, the exact resulting main commit must pass the six-runner Release runtime matrix plus the single-package/four-shard package contract. Tag v1.0.0 is not authorized by this PR alone; publication remains a separate explicit decision.