Docs: Update PNADC identification rates and refine attrition terminology

**Description:**

This PR updates the package documentation (`README.md` and Vignettes) to accurately reflect the recent methodological upgrades to the PNADC panel identification algorithms.

**Key Documentation Updates:**

* **Parameter Updates (`LOAD_PNADC.Rmd`):** Replaced all references and usage examples of the legacy `advanced` parameter with the new granular options (`advanced_1`, `advanced_2`, and `advanced_3`). Clarified the specific behavior of each stage.
* **Methodological Explanations (`BUILD_PNADC_PANEL.Rmd`):** Expanded the methodology section to detail the progressive multi-stage approach. Added a comprehensive explanation of the new Graph Theory-based Fuzzy Matching (Stage 3) and how it handles typographical errors in the IBGE data.
* **Identification Rates (README & Vignettes):** Updated the performance tables with the new baseline metrics. The documentation now clearly highlights the significant tracking improvements, specifically the ~5.5 p.p. retention gain achieved by Stage 3 in Wave 5 compared to the basic method.
* **Terminology Standardization:** Enforced the Data Zoom methodological guideline across all documents, explicitly defining the distinction between *Household Attrition* and *Individual Identification Rates*.

**Why this matters:**
These updates ensure that users clearly understand the mechanics behind the new advanced stages and provide transparent, reproducible tracking rates that validate the robustness of the new Fuzzy Matching approach.

Author: Vanndher

README.Rmd

@@ -10,7 +10,6 @@ output: github_document
 
 <!-- badges: start -->
 [![CRAN status](https://www.r-pkg.org/badges/version/datazoom.social)](https://CRAN.R-project.org/package=datazoom.social)
-[![R build status](https://github.com/datazoompuc/datazoom.social/workflows/R-CMD-check/badge.svg)](https://github.com/datazoompuc/datazoom.social/actions?style=flat) 
 [![CRAN RStudio mirror downloads](https://cranlogs.r-pkg.org/badges/grand-total/datazoom.social)](https://CRAN.R-project.org/package=datazoom.social)
 [![CRAN RStudio mirror downloads](https://cranlogs.r-pkg.org/badges/datazoom.social)](https://CRAN.R-project.org/package=datazoom.social)
 ![Languages](https://img.shields.io/github/languages/count/datazoompuc/datazoom.social?style=flat)
@@ -31,12 +30,12 @@ In the first version of the package, the focus is on the [Continuous PNAD](https
 
 # Installation
 
-<!-- You can install the released version of `datazoom.social` from -->
-<!-- [CRAN](https://CRAN.R-project.org/package=datazoom.social) with: -->
+You can install the released version of `datazoom.social` from
+[CRAN](https://CRAN.R-project.org/package=datazoom.social) with:
 
-<!-- ``` {r, eval=FALSE} -->
-<!-- install.packages("datazoom.social") -->
-<!-- ``` -->
+``` {r, eval=FALSE}
+install.packages("datazoom.social")
+```
 
 You can install the development version of `datazoom.social` from GitHub with:
 
@@ -57,8 +56,8 @@ devtools::load_all()
 
 |||
 |---|---|
-| **[Continuous PNAD](#continuous-pnad)** | _Download PNADC of a range of quarters_ |
-| **[Panel Identification](#pnad-panel-identification)** | _Build a Panel of PNADC individuals_ |
+| **[`load_pnadc`](#continuous-pnad)** | _Download PNADC of a range of quarters_ |
+| **[`build_pnadc_panel`](#pnad-panel-identification)** | _Identify individuals throughout time_ |
 
 </td></tr>
 
@@ -96,4 +95,4 @@ A BibTeX entry for LaTeX users is:
 	url = {https://datazoom.com.br/en/},
 	year = {2024}}
 
-```
+```