v0.6.0: release workflow, constraint-aware cell editing, pending-cell styling (#9)

* feat: demo DB seed/regenerate, backup/restore/sync refinements, SSH/SSL polish

- Demo SQLite DB: feature-rich seed (12 objects, 500-row audit log) + regenerate action in Settings
- Backup/restore: headless-testable core logic, psql -f for plain dumps, sync passes --clean --if-exists
- SSH/SSL runtime refinements and connection testing improvements
- Data grid: DataTypeIcon component, FK popover, table tree polish
- Docs: AGENTS.md/README updates, new screenshots, MIT LICENSE

* chore: optimize README screenshots (4.7 MB → 916 KB via pngquant, quality 70-90)

* v0.6.0: release workflow, constraint-aware cell editing, pending-cell styling

- Bump version to 0.6.0 across package.json, Cargo.toml, tauri.conf.json
- Add .github/workflows/release.yml: tag-triggered CI builds macOS (aarch64
  + x64), Windows, and Linux installers into a draft GitHub Release
- README: installer download table (unsigned note, per-platform files),
  "how releases are made" section
- CellEditor: constraint-aware commit — empty input on nullable columns
  becomes NULL, NOT NULL text-like types fall back to empty string, all
  other types blocked with an inline error bubble; replace "Set NULL"
  checkbox with a NULL row in the FK dropdown / empty enum option
- VirtualDataGrid: pending-edit dot → animated pending outline (ring) on
  staged cells; matching test updates
- docs-coverage test: align with rewritten README comparison table

src/lib/docs-coverage.test.ts

@@ -4,7 +4,7 @@ import { describe, it, expect } from "vitest";
 import agents from "../../AGENTS.md?raw";
 import readme from "../../README.md?raw";
 
-describe("v0.5.0 docs coverage", () => {
+describe("v0.6.0 docs coverage", () => {
   it("AGENTS.md marks inline cell editing complete", () => {
     expect(agents).toContain("Inline cell editing");
     expect(agents).toMatch(/Inline cell editing \| ✅/);
@@ -24,12 +24,14 @@ describe("v0.5.0 docs coverage", () => {
     expect(agents).toMatch(/Connection status indicator on cards \| ✅/);
     expect(agents).toMatch(/Move-to-folder bulk action \| ✅/);
   });
-  it("README declares v0.5.0", () => {
-    expect(readme).toContain("0.5.0");
+  it("README declares v0.6.0", () => {
+    expect(readme).toContain("0.6.0");
   });
   it("README marks inline editing complete (not Upcoming)", () => {
-    // Gridline's comparison-table cell carries the ✅ marker
-    expect(readme).toMatch(/Inline cell editing \| ✅ \| ✅ \| \*\*✅/);
+    // Key Features lists inline editing as a shipped feature
+    expect(readme).toMatch(/- \*\*Inline cell editing\*\* —/);
+    // comparison-table row for the stage→commit queue carries the ✅ marker
+    expect(readme).toMatch(/Changes queue \(stage → commit\)\s*\|[^|]*❌[^|]*\|[^|]*❌[^|]*\|\s*\*\*✅ Queue → Commit All\*\*/);
     expect(readme).not.toMatch(/Inline cell editing.*Upcoming/);
   });
 });

src/lib/version.test.ts

@@ -2,7 +2,7 @@ import { describe, it, expect } from "vitest";
 import pkg from "../../package.json";
 
 describe("version", () => {
-  it("declares v0.5.0 across the app shell", () => {
-    expect(pkg.version).toBe("0.5.0");
+  it("declares v0.6.0 across the app shell", () => {
+    expect(pkg.version).toBe("0.6.0");
   });
 });