Merge main a2b74d0 into fix/emotion-exports

Refs #689, #780

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Author: owjs3901

.changepacks/changepack_log_build_error_docs.json

@@ -0,0 +1,8 @@
+{
+  "changes": {
+    "packages/eslint-plugin/package.json": "Patch",
+    "packages/react/package.json": "Patch"
+  },
+  "note": "The @devup-ui/react README and the css-utils-literal-only rule docs link their mention of build errors to the new Build Errors reference (https://devup-ui.com/docs/build-errors), which lists the build errors grouped by API; the docs sidebar lists the page after Supported Syntax & Limitations, whose Build errors section links to it. Documentation only: no new build errors",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_compat_imports.json

@@ -0,0 +1,7 @@
+{
+  "changes": {
+    "bindings/devup-ui-wasm/package.json": "Patch"
+  },
+  "note": "Rewriting styled-components, Emotion and vanilla-extract imports keeps type-only imports type-only: `import { type DefaultTheme, ThemeProvider }` now leaves `import type { DefaultTheme }` on the package instead of a value import that made it a runtime dependency, and an `import type` declaration is left as written. `spin.getName()` on a `keyframes()` binding becomes the generated keyframes name instead of a call on a string that threw at runtime",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_compat_theme.json

@@ -0,0 +1,8 @@
+{
+  "changes": {
+    "packages/react/package.json": "Patch",
+    "bindings/devup-ui-wasm/package.json": "Patch"
+  },
+  "note": "The styled-components and Emotion compat ThemeProvider now gives its theme through React context: useTheme, withTheme and the new ThemeConsumer return the real theme object (an object merged over the outer theme, or what a theme function makes of it) instead of an empty Proxy of var() references, withTheme forwards refs, lets a caller's theme win and sets a displayName. Styles keep reading the CSS variables the provider declares. styled-components v6.4 createTheme is available from the compat entry, and ThemeConsumer and createTheme imports are redirected there instead of staying a runtime dependency on styled-components",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_conditional_spread_precedence.json

@@ -0,0 +1,8 @@
+{
+  "changes": {
+    "bindings/devup-ui-wasm/package.json": "Patch",
+    "apps/landing/package.json": "Patch"
+  },
+  "note": "Respect source-order property replacement across conditional spreads in styled rule objects, and document that styled callbacks cannot return runtime class names. No new build errors; existing located Cannot compose errors remain unchanged.",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_coordinator_port_isolation.json

@@ -0,0 +1,7 @@
+{
+  "changes": {
+    "packages/next-plugin/package.json": "Patch"
+  },
+  "note": "Isolate the coordinator port file per owning process when another live next dev/build holds it, record the owner pid, and report port, pid and recovery when the coordinator is missing or unreachable",
+  "date": "2026-10-02T12:41:12.3693972Z"
+}

.changepacks/changepack_log_docs_accuracy.json

@@ -0,0 +1,7 @@
+{
+  "changes": {
+    "apps/landing/package.json": "Patch"
+  },
+  "note": "Documentation examples now preserve Button event handlers and show the CSS actually emitted for values, colors, keyframes, fonts and atomic rule reuse. Documentation only: no new build errors.",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_docs_breakpoints.json

@@ -0,0 +1,8 @@
+{
+  "changes": {
+    "bindings/devup-ui-wasm/package.json": "Patch",
+    "apps/landing/package.json": "Patch"
+  },
+  "note": "Typography documents the emitted default breakpoints, and source-backed integration tests keep the public breakpoint lists and range bounds synchronized with the production defaults. No runtime changes or new build errors.",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_eslint_alias_rules.json

@@ -0,0 +1,7 @@
+{
+    "changes":  {
+                    "packages/eslint-plugin/package.json":  "Patch"
+                },
+    "note":  "ESLint rules now check exactly what the build reads. The array, typography, media and styleOrder rules and css-utils-literal-only follow the import aliases the build compiles by default (@emotion/react, @emotion/styled, styled-components, @vanilla-extract/css) and the rules of styled (styled.div({...}), styled(\"div\", {...}), styled(Base)({...}, {...}); not .attrs()), createGlobalStyle({...}) and the styles of Emotion Global, and check and fix a module-level const object that only styles read. Vanilla-extract stylesheets (.css.ts/.css.js) are no longer read as Devup UI. New rule no-runtime-read reports css/keyframes/styled/Box read as a value (\"`X` is read at runtime, where it does not exist\"), and css-utils-literal-only reports globals that do not exist where a .css.ts is evaluated (window, document, process, ...). No new build errors.",
+    "date":  "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_extractor_docs.json

@@ -0,0 +1,7 @@
+{
+  "changes": {
+    "bindings/devup-ui-wasm/package.json": "Patch"
+  },
+  "note": "The extractor guide shows reproducible native-element output, generated CSS-variable bindings, and actual atomic CSS rather than obsolete class names. Documentation only: no new build errors.",
+  "date": "2026-10-01T00:00:00.000Z"
+}

.changepacks/changepack_log_known_limitations.json

@@ -0,0 +1,7 @@
+{
+  "changes": {
+    "packages/react/package.json": "Patch"
+  },
+  "note": "The README no longer claims every CSS-in-JS pattern compiles: it describes what the build compiles and that anything it cannot know is a CSS variable or a located build error, and links the new Supported Syntax & Limitations page, which lists what compiles, the style override rules (where a later part wins and where the CSS cascade decides), Baseline 2024 browser support, that a component taking the css prop must pass className and style on, the runtime-only APIs and how each is handled, and the known limitations",
+  "date": "2026-10-01T00:00:00.000Z"
+}