Extend license header to all source file types

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

AGENTS.md

@@ -29,7 +29,7 @@ Detailed guides for specific subsystems live in `contrib/claude/`:
 - [`contrib/claude/relay.md`](contrib/claude/relay.md) — Relay cursor pagination (cursor format, keyset pagination, schema types)
 - [`contrib/claude/graphql.md`](contrib/claude/graphql.md) — Frontend Relay client (queries, fragments, mutations, pagination)
 - [`contrib/claude/commit.md`](contrib/claude/commit.md) — Commit message conventions
-- [`contrib/claude/license.md`](contrib/claude/license.md) — ISC license header for Go files
+- [`contrib/claude/license.md`](contrib/claude/license.md) — ISC license header (all file types)
 
 ## API Surface Rules
 

contrib/claude/license.md

@@ -1,6 +1,8 @@
 # License Header
 
-Every `.go` file starts with the ISC license header. Use the **current year** for new files. When editing an existing file whose header has a different year, update it to a range (e.g. `2025-2026`). Never overwrite the original year.
+Every source file must start with the ISC license header. Use the **current year** for new files. When editing an existing file whose header has a different year, update it to a range (e.g. `2025-2026`). Never overwrite the original year.
+
+## Go, TypeScript, JavaScript (`.go`, `.ts`, `.tsx`, `.js`, `.jsx`)
 
 ```
 // Copyright (c) <YEAR> Probo Inc <hello@getprobo.com>.
@@ -17,3 +19,58 @@ Every `.go` file starts with the ISC license header. Use the **current year** fo
 // OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 // PERFORMANCE OF THIS SOFTWARE.
 ```
+
+## CSS (`.css`)
+
+```
+/* Copyright (c) <YEAR> Probo Inc <hello@getprobo.com>.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+```
+
+## SQL (`.sql`)
+
+```
+-- Copyright (c) <YEAR> Probo Inc <hello@getprobo.com>.
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.
+```
+
+## GraphQL (`.graphql`)
+
+```
+# Copyright (c) <YEAR> Probo Inc <hello@getprobo.com>.
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+```