feat(config): update .gitignore to exclude output artifacts and add config files

- ignore all output files except for reports and config directories
- add new .done files for tasks 01-11 to track completion status
- include new configuration files for hardware prices and lab setup
- generate process flow and report documents for tasks 02 and 11

out/report/diagrams/D3.mermaid

@@ -0,0 +1,10 @@
+flowchart TD
+    TC([Test Coupon]) --> F[Friction<br/>RAPID 6-probe tribometer]
+    F --> FA([Lab Air -> COF dataset mu_normal])
+    F --> FN([Dry N2 -> COF dataset mu_dry_nit])
+    TC --> NI[Nanoindentation<br/>Bruker TI980]
+    NI --> NIR([Hardness, reduced modulus<br/>25 indents per coupon])
+    TC --> AF[AFM]
+    AF --> AFR([Topography -> Ra / Rq])
+    TC --> XR[micro-XRF<br/>Bruker M4 Tornado]
+    XR --> XRR([Pt/Au wt% map, 20x20 grid])