refactor: deconsolidate redox.patch into individual patches

The 556MB monolithic redox.patch was impossible to manage, unreviewable,
blocked GitHub pushes, and could only grow. This commit:

- Moves all 64 absorbed patches from absorbed/ to active use in base/
- Removes the absorbed/ directory (consolidation history is now PATCH-HISTORY.md)
- Removes the redox.patch symlink from recipes/core/base/
- Fixes all recipe symlinks to point to active patches (not absorbed/)
- Patches are now individually wired, reviewable, and independently rebasable

The redox.patch mega-file is no longer needed — individual patches
are applied directly from the recipe.toml patches list.

local/patches/base/P2-boot-logging.patch

@@ -0,0 +1,20 @@
+diff --git a/drivers/common/src/logger.rs b/drivers/common/src/logger.rs
+index 82ec2bd0..a531edd9 100644
+--- a/drivers/common/src/logger.rs
++++ b/drivers/common/src/logger.rs
+@@ -44,6 +44,7 @@ pub fn setup_logging(
+         Ok(b) => {
+             logger = logger.with_output(b.with_filter(file_level).flush_on_newline(true).build())
+         }
++        Err(error) if error.raw_os_error() == Some(19) => {}
+         Err(error) => eprintln!("Failed to create {logfile_base}.log: {}", error),
+     }
+ 
+@@ -61,6 +62,7 @@ pub fn setup_logging(
+                     .build(),
+             )
+         }
++        Err(error) if error.raw_os_error() == Some(19) => {}
+         Err(error) => eprintln!("Failed to create {logfile_base}.ansi.log: {}", error),
+     }
+