Reorganize assets and bump version to 0.7.3v0.7.3

- Move totalrecall.desktop, install-icon.sh, and config.yaml.example to assets/ directory
- Update all references in README.md and install-icon.sh
- Add file organization guidelines to AGENTS.md
- Clean up root directory structure

🤖 Generated with [opencode](https://opencode.ai)

Co-Authored-By: opencode <noreply@opencode.ai>

1 files changed, 7 insertions, 3 deletions

diff --git a/README.md b/README.md
index 4c57640..6060f17 100644
--- a/README.md
+++ b/README.md
@@ -76,13 +76,13 @@ TotalRecall includes a desktop icon for GNOME integration. To install:
 **For current user only:**
 ```bash
 cd totalrecall
-./install-icon.sh
+./assets/install-icon.sh
 ```
 
 **System-wide installation:**
 ```bash
 cd totalrecall
-sudo ./install-icon.sh
+sudo ./assets/install-icon.sh
 ```
 
 After installation, you may need to log out and log back in for the icon to appear in GNOME's application menu. The icon will show up as "TotalRecall" in the Education category.
@@ -193,7 +193,11 @@ When translations are provided, they are used directly without calling the trans
 
 ## Configuration
 
-Create an optional `~/config/totalrecall/config.yaml` file. You can copy the example file provided.
+Create an optional `~/config/totalrecall/config.yaml` file. You can copy the example file provided:
+
+```bash
+cp assets/config.yaml.example ~/.config/totalrecall/config.yaml
+```
 
 ## Output Files